156913606420

素因数分解:

$2^2\times 5^1\times {\mathrm{15991}}^1\times {\mathrm{490631}}^1$

素因数の和:506631

約数の個数: 24

約数和(自身を含む): 329539851648

約数和(自身を除く): 172626245228

約数列:

[1, 2, 4, 5, 10, 20, 15991, 31982, 63964, 79955, 159910, 319820, 490631, 981262, 1962524, 2453155, 4906310, 9812620, 7845680321, 15691360642, 31382721284, 39228401605, 78456803210, 156913606420]

約数ペア:

[(1, 156913606420), (2, 78456803210), (4, 39228401605), (5, 31382721284), (10, 15691360642), (20, 7845680321), (15991, 9812620), (31982, 4906310), (63964, 2453155), (79955, 1962524), (159910, 981262), (319820, 490631)]