78977380

素因数分解:

$2^2\times 5^1\times {\mathrm{317}}^1\times {\mathrm{12457}}^1$

素因数の和:12783

約数の個数: 24

約数和(自身を含む): 166389048

約数和(自身を除く): 87411668

約数列:

[1, 2, 4, 5, 10, 20, 317, 634, 1268, 1585, 3170, 6340, 12457, 24914, 49828, 62285, 124570, 249140, 3948869, 7897738, 15795476, 19744345, 39488690, 78977380]

約数ペア:

[(1, 78977380), (2, 39488690), (4, 19744345), (5, 15795476), (10, 7897738), (20, 3948869), (317, 249140), (634, 124570), (1268, 62285), (1585, 49828), (3170, 24914), (6340, 12457)]