638513366

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{2293}}^1$

素因数の和:2456

約数の個数: 32

約数和(自身を含む): 1016774208

約数和(自身を除く): 378260842

約数列:

[1, 2, 37, 53, 71, 74, 106, 142, 1961, 2293, 2627, 3763, 3922, 4586, 5254, 7526, 84841, 121529, 139231, 162803, 169682, 243058, 278462, 325606, 4496573, 6023711, 8628559, 8993146, 12047422, 17257118, 319256683, 638513366]

約数ペア:

[(1, 638513366), (2, 319256683), (37, 17257118), (53, 12047422), (71, 8993146), (74, 8628559), (106, 6023711), (142, 4496573), (1961, 325606), (2293, 278462), (2627, 243058), (3763, 169682), (3922, 162803), (4586, 139231), (5254, 121529), (7526, 84841)]