81195110

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{61981}}^1$

素因数の和:62119

約数の個数: 16

約数和(自身を含む): 147269232

約数和(自身を除く): 66074122

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 61981, 123962, 309905, 619810, 8119511, 16239022, 40597555, 81195110]

約数ペア:

[(1, 81195110), (2, 40597555), (5, 16239022), (10, 8119511), (131, 619810), (262, 309905), (655, 123962), (1310, 61981)]