72426280

素因数分解:

$2^3\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{1621}}^1$

素因数の和:2749

約数の個数: 32

約数和(自身を含む): 163205640

約数和(自身を除く): 90779360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1117, 1621, 2234, 3242, 4468, 5585, 6484, 8105, 8936, 11170, 12968, 16210, 22340, 32420, 44680, 64840, 1810657, 3621314, 7242628, 9053285, 14485256, 18106570, 36213140, 72426280]

約数ペア:

[(1, 72426280), (2, 36213140), (4, 18106570), (5, 14485256), (8, 9053285), (10, 7242628), (20, 3621314), (40, 1810657), (1117, 64840), (1621, 44680), (2234, 32420), (3242, 22340), (4468, 16210), (5585, 12968), (6484, 11170), (8105, 8936)]