313675280

素因数分解:

$2^4\times 5^1\times {\mathrm{3920941}}^1$

素因数の和:3920954

約数の個数: 20

約数和(自身を含む): 729295212

約数和(自身を除く): 415619932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3920941, 7841882, 15683764, 19604705, 31367528, 39209410, 62735056, 78418820, 156837640, 313675280]

約数ペア:

[(1, 313675280), (2, 156837640), (4, 78418820), (5, 62735056), (8, 39209410), (10, 31367528), (16, 19604705), (20, 15683764), (40, 7841882), (80, 3920941)]