20199421775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{615367}}^1$

素因数の和:615491

約数の個数: 24

約数和(自身を含む): 27241110624

約数和(自身を除く): 7041688849

約数列:

[1, 5, 13, 25, 65, 101, 325, 505, 1313, 2525, 6565, 32825, 615367, 3076835, 7999771, 15384175, 39998855, 62152067, 199994275, 310760335, 807976871, 1553801675, 4039884355, 20199421775]

約数ペア:

[(1, 20199421775), (5, 4039884355), (13, 1553801675), (25, 807976871), (65, 310760335), (101, 199994275), (325, 62152067), (505, 39998855), (1313, 15384175), (2525, 7999771), (6565, 3076835), (32825, 615367)]