428136080

素因数分解:

$2^4\times 5^1\times {\mathrm{5351701}}^1$

素因数の和:5351714

約数の個数: 20

約数和(自身を含む): 995416572

約数和(自身を除く): 567280492

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5351701, 10703402, 21406804, 26758505, 42813608, 53517010, 85627216, 107034020, 214068040, 428136080]

約数ペア:

[(1, 428136080), (2, 214068040), (4, 107034020), (5, 85627216), (8, 53517010), (10, 42813608), (16, 26758505), (20, 21406804), (40, 10703402), (80, 5351701)]