18188560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17489}}^1$

素因数の和:17515

約数の個数: 40

約数和(自身を含む): 45543960

約数和(自身を除く): 27355400

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 17489, 34978, 69956, 87445, 139912, 174890, 227357, 279824, 349780, 454714, 699560, 909428, 1136785, 1399120, 1818856, 2273570, 3637712, 4547140, 9094280, 18188560]

約数ペア:

[(1, 18188560), (2, 9094280), (4, 4547140), (5, 3637712), (8, 2273570), (10, 1818856), (13, 1399120), (16, 1136785), (20, 909428), (26, 699560), (40, 454714), (52, 349780), (65, 279824), (80, 227357), (104, 174890), (130, 139912), (208, 87445), (260, 69956), (520, 34978), (1040, 17489)]