About the Number

1990646280

1990646279 ← → 1990646281

2進数表記:1110110101001101101101000001000

漢数字表記:十九億九千六十四万六千二百八十

素因数分解:

2 3 × 3 5 × 5 1 × 7 1 × 17 1 × 1721 1

素因数の和:1771
約数の個数: 384
約数和(自身を含む): 8123431680
約数和(自身を除く): 6132785400

約数列:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 17, 18, 20, 21, 24, 27, 28, 30, 34, 35, 36, 40, 42, 45, 51, 54, 56, 60, 63, 68, 70, 72, 81, 84, 85, 90, 102, 105, 108, 119, 120, 126, 135, 136, 140, 153, 162, 168, 170, 180, 189, 204, 210, 216, 238, 243, 252, 255, 270, 280, 306, 315, 324, 340, 357, 360, 378, 405, 408, 420, 459, 476, 486, 504, 510, 540, 567, 595, 612, 630, 648, 680, 714, 756, 765, 810, 840, 918, 945, 952, 972, 1020, 1071, 1080, 1134, 1190, 1215, 1224, 1260, 1377, 1428, 1512, 1530, 1620, 1701, 1721, 1785, 1836, 1890, 1944, 2040, 2142, 2268, 2295, 2380, 2430, 2520, 2754, 2835, 2856, 3060, 3213, 3240, 3402, 3442, 3570, 3672, 3780, 4131, 4284, 4536, 4590, 4760, 4860, 5163, 5355, 5508, 5670, 6120, 6426, 6804, 6884, 6885, 7140, 7560, 8262, 8505, 8568, 8605, 9180, 9639, 9720, 10326, 10710, 11016, 11340, 12047, 12852, 13608, 13768, 13770, 14280, 15489, 16065, 16524, 17010, 17210, 18360, 19278, 20652, 20655, 21420, 22680, 24094, 25704, 25815, 27540, 28917, 29257, 30978, 32130, 33048, 34020, 34420, 36141, 38556, 41304, 41310, 42840, 46467, 48188, 48195, 51630, 55080, 57834, 58514, 60235, 61956, 64260, 68040, 68840, 72282, 77112, 77445, 82620, 87771, 92934, 96376, 96390, 103260, 108423, 115668, 117028, 120470, 123912, 128520, 139401, 144564, 144585, 146285, 154890, 165240, 175542, 180705, 185868, 192780, 204799, 206520, 216846, 231336, 232335, 234056, 240940, 263313, 278802, 289128, 289170, 292570, 309780, 325269, 351084, 361410, 371736, 385560, 409598, 418203, 433692, 438855, 464670, 481880, 526626, 542115, 557604, 578340, 585140, 614397, 619560, 650538, 697005, 702168, 722820, 789939, 819196, 836406, 867384, 877710, 929340, 975807, 1023995, 1053252, 1084230, 1115208, 1156680, 1170280, 1228794, 1301076, 1316565, 1394010, 1445640, 1579878, 1626345, 1638392, 1672812, 1755420, 1843191, 1858680, 1951614, 2047990, 2091015, 2106504, 2168460, 2369817, 2457588, 2602152, 2633130, 2788020, 2927421, 3071985, 3159756, 3252690, 3345624, 3510840, 3686382, 3903228, 3949695, 4095980, 4182030, 4336920, 4739634, 4879035, 4915176, 5266260, 5529573, 5576040, 5854842, 6143970, 6319512, 6505380, 7109451, 7372764, 7806456, 7899390, 8191960, 8364060, 9215955, 9479268, 9758070, 10532520, 11059146, 11709684, 11849085, 12287940, 13010760, 14218902, 14637105, 14745528, 15798780, 16588719, 16728120, 18431910, 18958536, 19516140, 22118292, 23419368, 23698170, 24575880, 27647865, 28437804, 29274210, 31597560, 33177438, 35547255, 36863820, 39032280, 44236584, 47396340, 49766157, 55295730, 56875608, 58548420, 66354876, 71094510, 73727640, 82943595, 94792680, 99532314, 110591460, 117096840, 132709752, 142189020, 165887190, 199064628, 221182920, 248830785, 284378040, 331774380, 398129256, 497661570, 663548760, 995323140, 1990646280]

約数ペア:
[(1, 1990646280), (2, 995323140), (3, 663548760), (4, 497661570), (5, 398129256), (6, 331774380), (7, 284378040), (8, 248830785), (9, 221182920), (10, 199064628), (12, 165887190), (14, 142189020), (15, 132709752), (17, 117096840), (18, 110591460), (20, 99532314), (21, 94792680), (24, 82943595), (27, 73727640), (28, 71094510), (30, 66354876), (34, 58548420), (35, 56875608), (36, 55295730), (40, 49766157), (42, 47396340), (45, 44236584), (51, 39032280), (54, 36863820), (56, 35547255), (60, 33177438), (63, 31597560), (68, 29274210), (70, 28437804), (72, 27647865), (81, 24575880), (84, 23698170), (85, 23419368), (90, 22118292), (102, 19516140), (105, 18958536), (108, 18431910), (119, 16728120), (120, 16588719), (126, 15798780), (135, 14745528), (136, 14637105), (140, 14218902), (153, 13010760), (162, 12287940), (168, 11849085), (170, 11709684), (180, 11059146), (189, 10532520), (204, 9758070), (210, 9479268), (216, 9215955), (238, 8364060), (243, 8191960), (252, 7899390), (255, 7806456), (270, 7372764), (280, 7109451), (306, 6505380), (315, 6319512), (324, 6143970), (340, 5854842), (357, 5576040), (360, 5529573), (378, 5266260), (405, 4915176), (408, 4879035), (420, 4739634), (459, 4336920), (476, 4182030), (486, 4095980), (504, 3949695), (510, 3903228), (540, 3686382), (567, 3510840), (595, 3345624), (612, 3252690), (630, 3159756), (648, 3071985), (680, 2927421), (714, 2788020), (756, 2633130), (765, 2602152), (810, 2457588), (840, 2369817), (918, 2168460), (945, 2106504), (952, 2091015), (972, 2047990), (1020, 1951614), (1071, 1858680), (1080, 1843191), (1134, 1755420), (1190, 1672812), (1215, 1638392), (1224, 1626345), (1260, 1579878), (1377, 1445640), (1428, 1394010), (1512, 1316565), (1530, 1301076), (1620, 1228794), (1701, 1170280), (1721, 1156680), (1785, 1115208), (1836, 1084230), (1890, 1053252), (1944, 1023995), (2040, 975807), (2142, 929340), (2268, 877710), (2295, 867384), (2380, 836406), (2430, 819196), (2520, 789939), (2754, 722820), (2835, 702168), (2856, 697005), (3060, 650538), (3213, 619560), (3240, 614397), (3402, 585140), (3442, 578340), (3570, 557604), (3672, 542115), (3780, 526626), (4131, 481880), (4284, 464670), (4536, 438855), (4590, 433692), (4760, 418203), (4860, 409598), (5163, 385560), (5355, 371736), (5508, 361410), (5670, 351084), (6120, 325269), (6426, 309780), (6804, 292570), (6884, 289170), (6885, 289128), (7140, 278802), (7560, 263313), (8262, 240940), (8505, 234056), (8568, 232335), (8605, 231336), (9180, 216846), (9639, 206520), (9720, 204799), (10326, 192780), (10710, 185868), (11016, 180705), (11340, 175542), (12047, 165240), (12852, 154890), (13608, 146285), (13768, 144585), (13770, 144564), (14280, 139401), (15489, 128520), (16065, 123912), (16524, 120470), (17010, 117028), (17210, 115668), (18360, 108423), (19278, 103260), (20652, 96390), (20655, 96376), (21420, 92934), (22680, 87771), (24094, 82620), (25704, 77445), (25815, 77112), (27540, 72282), (28917, 68840), (29257, 68040), (30978, 64260), (32130, 61956), (33048, 60235), (34020, 58514), (34420, 57834), (36141, 55080), (38556, 51630), (41304, 48195), (41310, 48188), (42840, 46467)]

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