987871564

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{204613}}^1$

素因数の和:204705

約数の個数: 24

約数和(自身を含む): 1856258208

約数和(自身を除く): 868386644

約数列:

[1, 2, 4, 17, 34, 68, 71, 142, 284, 1207, 2414, 4828, 204613, 409226, 818452, 3478421, 6956842, 13913684, 14527523, 29055046, 58110092, 246967891, 493935782, 987871564]

約数ペア:

[(1, 987871564), (2, 493935782), (4, 246967891), (17, 58110092), (34, 29055046), (68, 14527523), (71, 13913684), (142, 6956842), (284, 3478421), (1207, 818452), (2414, 409226), (4828, 204613)]