39567280

素因数分解:

$2^4\times 5^1\times {\mathrm{494591}}^1$

素因数の和:494604

約数の個数: 20

約数和(自身を含む): 91994112

約数和(自身を除く): 52426832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 494591, 989182, 1978364, 2472955, 3956728, 4945910, 7913456, 9891820, 19783640, 39567280]

約数ペア:

[(1, 39567280), (2, 19783640), (4, 9891820), (5, 7913456), (8, 4945910), (10, 3956728), (16, 2472955), (20, 1978364), (40, 989182), (80, 494591)]