405502020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1721}}^1$

素因数の和:1771

約数の個数: 288

約数和(自身を含む): 1624686336

約数和(自身を除く): 1219184316

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 17, 18, 20, 21, 22, 28, 30, 33, 34, 35, 36, 42, 44, 45, 51, 55, 60, 63, 66, 68, 70, 77, 84, 85, 90, 99, 102, 105, 110, 119, 126, 132, 140, 153, 154, 165, 170, 180, 187, 198, 204, 210, 220, 231, 238, 252, 255, 306, 308, 315, 330, 340, 357, 374, 385, 396, 420, 462, 476, 495, 510, 561, 595, 612, 630, 660, 693, 714, 748, 765, 770, 924, 935, 990, 1020, 1071, 1122, 1155, 1190, 1260, 1309, 1386, 1428, 1530, 1540, 1683, 1721, 1785, 1870, 1980, 2142, 2244, 2310, 2380, 2618, 2772, 2805, 3060, 3366, 3442, 3465, 3570, 3740, 3927, 4284, 4620, 5163, 5236, 5355, 5610, 6545, 6732, 6884, 6930, 7140, 7854, 8415, 8605, 10326, 10710, 11220, 11781, 12047, 13090, 13860, 15489, 15708, 16830, 17210, 18931, 19635, 20652, 21420, 23562, 24094, 25815, 26180, 29257, 30978, 33660, 34420, 36141, 37862, 39270, 47124, 48188, 51630, 56793, 58514, 58905, 60235, 61956, 72282, 75724, 77445, 78540, 87771, 94655, 103260, 108423, 113586, 117028, 117810, 120470, 132517, 144564, 146285, 154890, 170379, 175542, 180705, 189310, 204799, 216846, 227172, 235620, 240940, 263313, 265034, 283965, 292570, 309780, 321827, 340758, 351084, 361410, 378620, 397551, 409598, 433692, 438855, 526626, 530068, 542115, 567930, 585140, 614397, 643654, 662585, 681516, 722820, 795102, 819196, 851895, 877710, 965481, 1023995, 1053252, 1084230, 1135860, 1192653, 1228794, 1287308, 1316565, 1325170, 1590204, 1609135, 1703790, 1755420, 1843191, 1930962, 1987755, 2047990, 2168460, 2252789, 2385306, 2457588, 2633130, 2650340, 2896443, 3071985, 3218270, 3407580, 3686382, 3861924, 3975510, 4095980, 4505578, 4770612, 4827405, 5266260, 5792886, 5963265, 6143970, 6436540, 6758367, 7372764, 7951020, 9011156, 9215955, 9654810, 11263945, 11585772, 11926530, 12287940, 13516734, 14482215, 18431910, 19309620, 20275101, 22527890, 23853060, 27033468, 28964430, 33791835, 36863820, 40550202, 45055780, 57928860, 67583670, 81100404, 101375505, 135167340, 202751010, 405502020]

約数ペア:

[(1, 405502020), (2, 202751010), (3, 135167340), (4, 101375505), (5, 81100404), (6, 67583670), (7, 57928860), (9, 45055780), (10, 40550202), (11, 36863820), (12, 33791835), (14, 28964430), (15, 27033468), (17, 23853060), (18, 22527890), (20, 20275101), (21, 19309620), (22, 18431910), (28, 14482215), (30, 13516734), (33, 12287940), (34, 11926530), (35, 11585772), (36, 11263945), (42, 9654810), (44, 9215955), (45, 9011156), (51, 7951020), (55, 7372764), (60, 6758367), (63, 6436540), (66, 6143970), (68, 5963265), (70, 5792886), (77, 5266260), (84, 4827405), (85, 4770612), (90, 4505578), (99, 4095980), (102, 3975510), (105, 3861924), (110, 3686382), (119, 3407580), (126, 3218270), (132, 3071985), (140, 2896443), (153, 2650340), (154, 2633130), (165, 2457588), (170, 2385306), (180, 2252789), (187, 2168460), (198, 2047990), (204, 1987755), (210, 1930962), (220, 1843191), (231, 1755420), (238, 1703790), (252, 1609135), (255, 1590204), (306, 1325170), (308, 1316565), (315, 1287308), (330, 1228794), (340, 1192653), (357, 1135860), (374, 1084230), (385, 1053252), (396, 1023995), (420, 965481), (462, 877710), (476, 851895), (495, 819196), (510, 795102), (561, 722820), (595, 681516), (612, 662585), (630, 643654), (660, 614397), (693, 585140), (714, 567930), (748, 542115), (765, 530068), (770, 526626), (924, 438855), (935, 433692), (990, 409598), (1020, 397551), (1071, 378620), (1122, 361410), (1155, 351084), (1190, 340758), (1260, 321827), (1309, 309780), (1386, 292570), (1428, 283965), (1530, 265034), (1540, 263313), (1683, 240940), (1721, 235620), (1785, 227172), (1870, 216846), (1980, 204799), (2142, 189310), (2244, 180705), (2310, 175542), (2380, 170379), (2618, 154890), (2772, 146285), (2805, 144564), (3060, 132517), (3366, 120470), (3442, 117810), (3465, 117028), (3570, 113586), (3740, 108423), (3927, 103260), (4284, 94655), (4620, 87771), (5163, 78540), (5236, 77445), (5355, 75724), (5610, 72282), (6545, 61956), (6732, 60235), (6884, 58905), (6930, 58514), (7140, 56793), (7854, 51630), (8415, 48188), (8605, 47124), (10326, 39270), (10710, 37862), (11220, 36141), (11781, 34420), (12047, 33660), (13090, 30978), (13860, 29257), (15489, 26180), (15708, 25815), (16830, 24094), (17210, 23562), (18931, 21420), (19635, 20652)]