31052840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 128

約数和(自身を含む): 90720000

約数和(自身を除く): 59667160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 35, 38, 40, 52, 56, 65, 70, 76, 91, 95, 104, 130, 133, 140, 152, 182, 190, 247, 260, 266, 280, 364, 380, 449, 455, 494, 520, 532, 665, 728, 760, 898, 910, 988, 1064, 1235, 1330, 1729, 1796, 1820, 1976, 2245, 2470, 2660, 3143, 3458, 3592, 3640, 4490, 4940, 5320, 5837, 6286, 6916, 8531, 8645, 8980, 9880, 11674, 12572, 13832, 15715, 17062, 17290, 17960, 23348, 25144, 29185, 31430, 34124, 34580, 40859, 42655, 46696, 58370, 59717, 62860, 68248, 69160, 81718, 85310, 110903, 116740, 119434, 125720, 163436, 170620, 204295, 221806, 233480, 238868, 298585, 326872, 341240, 408590, 443612, 477736, 554515, 597170, 776321, 817180, 887224, 1109030, 1194340, 1552642, 1634360, 2218060, 2388680, 3105284, 3881605, 4436120, 6210568, 7763210, 15526420, 31052840]

約数ペア:

[(1, 31052840), (2, 15526420), (4, 7763210), (5, 6210568), (7, 4436120), (8, 3881605), (10, 3105284), (13, 2388680), (14, 2218060), (19, 1634360), (20, 1552642), (26, 1194340), (28, 1109030), (35, 887224), (38, 817180), (40, 776321), (52, 597170), (56, 554515), (65, 477736), (70, 443612), (76, 408590), (91, 341240), (95, 326872), (104, 298585), (130, 238868), (133, 233480), (140, 221806), (152, 204295), (182, 170620), (190, 163436), (247, 125720), (260, 119434), (266, 116740), (280, 110903), (364, 85310), (380, 81718), (449, 69160), (455, 68248), (494, 62860), (520, 59717), (532, 58370), (665, 46696), (728, 42655), (760, 40859), (898, 34580), (910, 34124), (988, 31430), (1064, 29185), (1235, 25144), (1330, 23348), (1729, 17960), (1796, 17290), (1820, 17062), (1976, 15715), (2245, 13832), (2470, 12572), (2660, 11674), (3143, 9880), (3458, 8980), (3592, 8645), (3640, 8531), (4490, 6916), (4940, 6286), (5320, 5837)]