81187730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{624521}}^1$

素因数の和:624541

約数の個数: 16

約数和(自身を含む): 157379544

約数和(自身を除く): 76191814

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 624521, 1249042, 3122605, 6245210, 8118773, 16237546, 40593865, 81187730]

約数ペア:

[(1, 81187730), (2, 40593865), (5, 16237546), (10, 8118773), (13, 6245210), (26, 3122605), (65, 1249042), (130, 624521)]