68782160

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1723}}^1$

素因数の和:2235

約数の個数: 40

約数和(自身を含む): 160332000

約数和(自身を除く): 91549840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1723, 1996, 2495, 3446, 3992, 4990, 6892, 7984, 8615, 9980, 13784, 17230, 19960, 27568, 34460, 39920, 68920, 137840, 859777, 1719554, 3439108, 4298885, 6878216, 8597770, 13756432, 17195540, 34391080, 68782160]

約数ペア:

[(1, 68782160), (2, 34391080), (4, 17195540), (5, 13756432), (8, 8597770), (10, 6878216), (16, 4298885), (20, 3439108), (40, 1719554), (80, 859777), (499, 137840), (998, 68920), (1723, 39920), (1996, 34460), (2495, 27568), (3446, 19960), (3992, 17230), (4990, 13784), (6892, 9980), (7984, 8615)]