81307912

素因数分解:

$2^3\times 7^1\times {\mathrm{281}}^1\times {\mathrm{5167}}^1$

素因数の和:5461

約数の個数: 32

約数和(自身を含む): 174885120

約数和(自身を除く): 93577208

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 281, 562, 1124, 1967, 2248, 3934, 5167, 7868, 10334, 15736, 20668, 36169, 41336, 72338, 144676, 289352, 1451927, 2903854, 5807708, 10163489, 11615416, 20326978, 40653956, 81307912]

約数ペア:

[(1, 81307912), (2, 40653956), (4, 20326978), (7, 11615416), (8, 10163489), (14, 5807708), (28, 2903854), (56, 1451927), (281, 289352), (562, 144676), (1124, 72338), (1967, 41336), (2248, 36169), (3934, 20668), (5167, 15736), (7868, 10334)]