77981340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1299689}}^1$

素因数の和:1299701

約数の個数: 24

約数和(自身を含む): 218347920

約数和(自身を除く): 140366580

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1299689, 2599378, 3899067, 5198756, 6498445, 7798134, 12996890, 15596268, 19495335, 25993780, 38990670, 77981340]

約数ペア:

[(1, 77981340), (2, 38990670), (3, 25993780), (4, 19495335), (5, 15596268), (6, 12996890), (10, 7798134), (12, 6498445), (15, 5198756), (20, 3899067), (30, 2599378), (60, 1299689)]