851472520

素因数分解:

$2^3\times 5^1\times {\mathrm{21286813}}^1$

素因数の和:21286824

約数の個数: 16

約数和(自身を含む): 1915813260

約数和(自身を除く): 1064340740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21286813, 42573626, 85147252, 106434065, 170294504, 212868130, 425736260, 851472520]

約数ペア:

[(1, 851472520), (2, 425736260), (4, 212868130), (5, 170294504), (8, 106434065), (10, 85147252), (20, 42573626), (40, 21286813)]