220996840

素因数分解:

$2^3\times 5^1\times {\mathrm{1579}}^1\times {\mathrm{3499}}^1$

素因数の和:5089

約数の個数: 32

約数和(自身を含む): 497700000

約数和(自身を除く): 276703160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1579, 3158, 3499, 6316, 6998, 7895, 12632, 13996, 15790, 17495, 27992, 31580, 34990, 63160, 69980, 139960, 5524921, 11049842, 22099684, 27624605, 44199368, 55249210, 110498420, 220996840]

約数ペア:

[(1, 220996840), (2, 110498420), (4, 55249210), (5, 44199368), (8, 27624605), (10, 22099684), (20, 11049842), (40, 5524921), (1579, 139960), (3158, 69980), (3499, 63160), (6316, 34990), (6998, 31580), (7895, 27992), (12632, 17495), (13996, 15790)]