157626640

素因数分解:

$2^4\times 5^1\times {\mathrm{1970333}}^1$

素因数の和:1970346

約数の個数: 20

約数和(自身を含む): 366482124

約数和(自身を除く): 208855484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1970333, 3940666, 7881332, 9851665, 15762664, 19703330, 31525328, 39406660, 78813320, 157626640]

約数ペア:

[(1, 157626640), (2, 78813320), (4, 39406660), (5, 31525328), (8, 19703330), (10, 15762664), (16, 9851665), (20, 7881332), (40, 3940666), (80, 1970333)]