20170758920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{38789921}}^1$

素因数の和:38789945

約数の個数: 32

約数和(自身を含む): 48875301720

約数和(自身を除く): 28704542800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 38789921, 77579842, 155159684, 193949605, 310319368, 387899210, 504268973, 775798420, 1008537946, 1551596840, 2017075892, 2521344865, 4034151784, 5042689730, 10085379460, 20170758920]

約数ペア:

[(1, 20170758920), (2, 10085379460), (4, 5042689730), (5, 4034151784), (8, 2521344865), (10, 2017075892), (13, 1551596840), (20, 1008537946), (26, 775798420), (40, 504268973), (52, 387899210), (65, 310319368), (104, 193949605), (130, 155159684), (260, 77579842), (520, 38789921)]