17960680

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1621}}^1$

素因数の和:1909

約数の個数: 32

約数和(自身を含む): 40582440

約数和(自身を除く): 22621760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1621, 2216, 2770, 3242, 5540, 6484, 8105, 11080, 12968, 16210, 32420, 64840, 449017, 898034, 1796068, 2245085, 3592136, 4490170, 8980340, 17960680]

約数ペア:

[(1, 17960680), (2, 8980340), (4, 4490170), (5, 3592136), (8, 2245085), (10, 1796068), (20, 898034), (40, 449017), (277, 64840), (554, 32420), (1108, 16210), (1385, 12968), (1621, 11080), (2216, 8105), (2770, 6484), (3242, 5540)]