81977868

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{325309}}^1$

素因数の和:325326

約数の個数: 36

約数和(自身を含む): 236825680

約数和(自身を除く): 154847812

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 325309, 650618, 975927, 1301236, 1951854, 2277163, 2927781, 3903708, 4554326, 5855562, 6831489, 9108652, 11711124, 13662978, 20494467, 27325956, 40988934, 81977868]

約数ペア:

[(1, 81977868), (2, 40988934), (3, 27325956), (4, 20494467), (6, 13662978), (7, 11711124), (9, 9108652), (12, 6831489), (14, 5855562), (18, 4554326), (21, 3903708), (28, 2927781), (36, 2277163), (42, 1951854), (63, 1301236), (84, 975927), (126, 650618), (252, 325309)]