90942800

素因数分解:

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

素因数の和:17520

約数の個数: 60

約数和(自身を含む): 235310460

約数和(自身を除く): 144367660

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 17489, 34978, 69956, 87445, 139912, 174890, 227357, 279824, 349780, 437225, 454714, 699560, 874450, 909428, 1136785, 1399120, 1748900, 1818856, 2273570, 3497800, 3637712, 4547140, 5683925, 6995600, 9094280, 11367850, 18188560, 22735700, 45471400, 90942800]

約数ペア:

[(1, 90942800), (2, 45471400), (4, 22735700), (5, 18188560), (8, 11367850), (10, 9094280), (13, 6995600), (16, 5683925), (20, 4547140), (25, 3637712), (26, 3497800), (40, 2273570), (50, 1818856), (52, 1748900), (65, 1399120), (80, 1136785), (100, 909428), (104, 874450), (130, 699560), (200, 454714), (208, 437225), (260, 349780), (325, 279824), (400, 227357), (520, 174890), (650, 139912), (1040, 87445), (1300, 69956), (2600, 34978), (5200, 17489)]