64768280

素因数分解:

$2^3\times 5^1\times {\mathrm{1619207}}^1$

素因数の和:1619218

約数の個数: 16

約数和(自身を含む): 145728720

約数和(自身を除く): 80960440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1619207, 3238414, 6476828, 8096035, 12953656, 16192070, 32384140, 64768280]

約数ペア:

[(1, 64768280), (2, 32384140), (4, 16192070), (5, 12953656), (8, 8096035), (10, 6476828), (20, 3238414), (40, 1619207)]