89396840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{171917}}^1$

素因数の和:171941

約数の個数: 32

約数和(自身を含む): 216616680

約数和(自身を除く): 127219840

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 171917, 343834, 687668, 859585, 1375336, 1719170, 2234921, 3438340, 4469842, 6876680, 8939684, 11174605, 17879368, 22349210, 44698420, 89396840]

約数ペア:

[(1, 89396840), (2, 44698420), (4, 22349210), (5, 17879368), (8, 11174605), (10, 8939684), (13, 6876680), (20, 4469842), (26, 3438340), (40, 2234921), (52, 1719170), (65, 1375336), (104, 859585), (130, 687668), (260, 343834), (520, 171917)]