90404080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{86927}}^1$

素因数の和:86953

約数の個数: 40

約数和(自身を含む): 226360512

約数和(自身を除く): 135956432

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 86927, 173854, 347708, 434635, 695416, 869270, 1130051, 1390832, 1738540, 2260102, 3477080, 4520204, 5650255, 6954160, 9040408, 11300510, 18080816, 22601020, 45202040, 90404080]

約数ペア:

[(1, 90404080), (2, 45202040), (4, 22601020), (5, 18080816), (8, 11300510), (10, 9040408), (13, 6954160), (16, 5650255), (20, 4520204), (26, 3477080), (40, 2260102), (52, 1738540), (65, 1390832), (80, 1130051), (104, 869270), (130, 695416), (208, 434635), (260, 347708), (520, 173854), (1040, 86927)]