81168910

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{61961}}^1$

素因数の和:62099

約数の個数: 16

約数和(自身を含む): 147221712

約数和(自身を除く): 66052802

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 61961, 123922, 309805, 619610, 8116891, 16233782, 40584455, 81168910]

約数ペア:

[(1, 81168910), (2, 40584455), (5, 16233782), (10, 8116891), (131, 619610), (262, 309805), (655, 123922), (1310, 61961)]