315804560

素因数分解:

$2^4\times 5^1\times {\mathrm{3947557}}^1$

素因数の和:3947570

約数の個数: 20

約数和(自身を含む): 734245788

約数和(自身を除く): 418441228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3947557, 7895114, 15790228, 19737785, 31580456, 39475570, 63160912, 78951140, 157902280, 315804560]

約数ペア:

[(1, 315804560), (2, 157902280), (4, 78951140), (5, 63160912), (8, 39475570), (10, 31580456), (16, 19737785), (20, 15790228), (40, 7895114), (80, 3947557)]