About the Number

81428490

81428489 ← → 81428491

2進数表記:100110110101000000000001010

漢数字表記:八千百四十二万八千四百九十

素因数分解:

2 1 × 3 4 × 5 1 × 11 1 × 13 1 × 19 1 × 37 1

素因数の和:99
約数の個数: 320
約数和(自身を含む): 278087040
約数和(自身を除く): 196658550

約数列:
[1, 2, 3, 5, 6, 9, 10, 11, 13, 15, 18, 19, 22, 26, 27, 30, 33, 37, 38, 39, 45, 54, 55, 57, 65, 66, 74, 78, 81, 90, 95, 99, 110, 111, 114, 117, 130, 135, 143, 162, 165, 171, 185, 190, 195, 198, 209, 222, 234, 247, 270, 285, 286, 297, 330, 333, 342, 351, 370, 390, 405, 407, 418, 429, 481, 494, 495, 513, 555, 570, 585, 594, 627, 666, 702, 703, 715, 741, 810, 814, 855, 858, 891, 962, 990, 999, 1026, 1045, 1053, 1110, 1170, 1221, 1235, 1254, 1287, 1406, 1430, 1443, 1482, 1485, 1539, 1665, 1710, 1755, 1782, 1881, 1998, 2035, 2090, 2106, 2109, 2145, 2223, 2405, 2442, 2470, 2565, 2574, 2717, 2886, 2970, 2997, 3078, 3135, 3330, 3510, 3515, 3663, 3705, 3762, 3861, 4070, 4218, 4290, 4329, 4446, 4455, 4810, 4995, 5130, 5265, 5291, 5434, 5643, 5994, 6105, 6270, 6327, 6435, 6669, 7030, 7215, 7326, 7410, 7695, 7722, 7733, 8151, 8658, 8910, 9139, 9405, 9990, 10530, 10545, 10582, 10989, 11115, 11286, 11583, 12210, 12654, 12870, 12987, 13338, 13585, 14430, 14985, 15390, 15466, 15873, 16302, 16929, 18278, 18315, 18810, 18981, 19305, 20007, 21090, 21645, 21978, 22230, 23166, 23199, 24453, 25974, 26455, 27170, 27417, 28215, 29970, 31635, 31746, 32967, 33345, 33858, 36630, 37962, 38610, 38665, 38961, 40014, 40755, 43290, 45695, 46398, 47619, 48906, 52910, 54834, 54945, 56430, 56943, 57915, 63270, 64935, 65934, 66690, 69597, 73359, 77330, 77922, 79365, 81510, 82251, 84645, 91390, 94905, 95238, 100035, 100529, 109890, 113886, 115830, 115995, 122265, 129870, 137085, 139194, 142857, 146718, 158730, 164502, 164835, 169290, 189810, 194805, 200070, 201058, 208791, 220077, 231990, 238095, 244530, 246753, 274170, 284715, 285714, 301587, 329670, 347985, 366795, 389610, 411255, 417582, 428571, 440154, 476190, 493506, 502645, 569430, 603174, 626373, 695970, 714285, 733590, 740259, 822510, 857142, 904761, 1005290, 1043955, 1100385, 1233765, 1252746, 1428570, 1480518, 1507935, 1809522, 2087910, 2142855, 2200770, 2467530, 2714283, 3015870, 3131865, 3701295, 4285710, 4523805, 5428566, 6263730, 7402590, 8142849, 9047610, 13571415, 16285698, 27142830, 40714245, 81428490]

約数ペア:
[(1, 81428490), (2, 40714245), (3, 27142830), (5, 16285698), (6, 13571415), (9, 9047610), (10, 8142849), (11, 7402590), (13, 6263730), (15, 5428566), (18, 4523805), (19, 4285710), (22, 3701295), (26, 3131865), (27, 3015870), (30, 2714283), (33, 2467530), (37, 2200770), (38, 2142855), (39, 2087910), (45, 1809522), (54, 1507935), (55, 1480518), (57, 1428570), (65, 1252746), (66, 1233765), (74, 1100385), (78, 1043955), (81, 1005290), (90, 904761), (95, 857142), (99, 822510), (110, 740259), (111, 733590), (114, 714285), (117, 695970), (130, 626373), (135, 603174), (143, 569430), (162, 502645), (165, 493506), (171, 476190), (185, 440154), (190, 428571), (195, 417582), (198, 411255), (209, 389610), (222, 366795), (234, 347985), (247, 329670), (270, 301587), (285, 285714), (286, 284715), (297, 274170), (330, 246753), (333, 244530), (342, 238095), (351, 231990), (370, 220077), (390, 208791), (405, 201058), (407, 200070), (418, 194805), (429, 189810), (481, 169290), (494, 164835), (495, 164502), (513, 158730), (555, 146718), (570, 142857), (585, 139194), (594, 137085), (627, 129870), (666, 122265), (702, 115995), (703, 115830), (715, 113886), (741, 109890), (810, 100529), (814, 100035), (855, 95238), (858, 94905), (891, 91390), (962, 84645), (990, 82251), (999, 81510), (1026, 79365), (1045, 77922), (1053, 77330), (1110, 73359), (1170, 69597), (1221, 66690), (1235, 65934), (1254, 64935), (1287, 63270), (1406, 57915), (1430, 56943), (1443, 56430), (1482, 54945), (1485, 54834), (1539, 52910), (1665, 48906), (1710, 47619), (1755, 46398), (1782, 45695), (1881, 43290), (1998, 40755), (2035, 40014), (2090, 38961), (2106, 38665), (2109, 38610), (2145, 37962), (2223, 36630), (2405, 33858), (2442, 33345), (2470, 32967), (2565, 31746), (2574, 31635), (2717, 29970), (2886, 28215), (2970, 27417), (2997, 27170), (3078, 26455), (3135, 25974), (3330, 24453), (3510, 23199), (3515, 23166), (3663, 22230), (3705, 21978), (3762, 21645), (3861, 21090), (4070, 20007), (4218, 19305), (4290, 18981), (4329, 18810), (4446, 18315), (4455, 18278), (4810, 16929), (4995, 16302), (5130, 15873), (5265, 15466), (5291, 15390), (5434, 14985), (5643, 14430), (5994, 13585), (6105, 13338), (6270, 12987), (6327, 12870), (6435, 12654), (6669, 12210), (7030, 11583), (7215, 11286), (7326, 11115), (7410, 10989), (7695, 10582), (7722, 10545), (7733, 10530), (8151, 9990), (8658, 9405), (8910, 9139)]

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