248515280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{2879}}^1$

素因数の和:2988

約数の個数: 80

約数和(自身を含む): 629959680

約数和(自身を除く): 381444400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 83, 104, 130, 166, 208, 260, 332, 415, 520, 664, 830, 1040, 1079, 1328, 1660, 2158, 2879, 3320, 4316, 5395, 5758, 6640, 8632, 10790, 11516, 14395, 17264, 21580, 23032, 28790, 37427, 43160, 46064, 57580, 74854, 86320, 115160, 149708, 187135, 230320, 238957, 299416, 374270, 477914, 598832, 748540, 955828, 1194785, 1497080, 1911656, 2389570, 2994160, 3106441, 3823312, 4779140, 6212882, 9558280, 12425764, 15532205, 19116560, 24851528, 31064410, 49703056, 62128820, 124257640, 248515280]

約数ペア:

[(1, 248515280), (2, 124257640), (4, 62128820), (5, 49703056), (8, 31064410), (10, 24851528), (13, 19116560), (16, 15532205), (20, 12425764), (26, 9558280), (40, 6212882), (52, 4779140), (65, 3823312), (80, 3106441), (83, 2994160), (104, 2389570), (130, 1911656), (166, 1497080), (208, 1194785), (260, 955828), (332, 748540), (415, 598832), (520, 477914), (664, 374270), (830, 299416), (1040, 238957), (1079, 230320), (1328, 187135), (1660, 149708), (2158, 115160), (2879, 86320), (3320, 74854), (4316, 57580), (5395, 46064), (5758, 43160), (6640, 37427), (8632, 28790), (10790, 23032), (11516, 21580), (14395, 17264)]