290410280

素因数分解:

$2^3\times 5^1\times {\mathrm{701}}^1\times {\mathrm{10357}}^1$

素因数の和:11069

約数の個数: 32

約数和(自身を含む): 654418440

約数和(自身を除く): 364008160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 701, 1402, 2804, 3505, 5608, 7010, 10357, 14020, 20714, 28040, 41428, 51785, 82856, 103570, 207140, 414280, 7260257, 14520514, 29041028, 36301285, 58082056, 72602570, 145205140, 290410280]

約数ペア:

[(1, 290410280), (2, 145205140), (4, 72602570), (5, 58082056), (8, 36301285), (10, 29041028), (20, 14520514), (40, 7260257), (701, 414280), (1402, 207140), (2804, 103570), (3505, 82856), (5608, 51785), (7010, 41428), (10357, 28040), (14020, 20714)]