644366164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{728921}}^1$

素因数の和:728955

約数の個数: 24

約数和(自身を含む): 1285818408

約数和(自身を除く): 641452244

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 884, 728921, 1457842, 2915684, 9475973, 12391657, 18951946, 24783314, 37903892, 49566628, 161091541, 322183082, 644366164]

約数ペア:

[(1, 644366164), (2, 322183082), (4, 161091541), (13, 49566628), (17, 37903892), (26, 24783314), (34, 18951946), (52, 12391657), (68, 9475973), (221, 2915684), (442, 1457842), (884, 728921)]