81279436

素因数分解:

$2^2\times 7^2\times {\mathrm{414691}}^1$

素因数の和:414709

約数の個数: 18

約数和(自身を含む): 165462108

約数和(自身を除く): 84182672

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 414691, 829382, 1658764, 2902837, 5805674, 11611348, 20319859, 40639718, 81279436]

約数ペア:

[(1, 81279436), (2, 40639718), (4, 20319859), (7, 11611348), (14, 5805674), (28, 2902837), (49, 1658764), (98, 829382), (196, 414691)]