51457360

素因数分解:

$2^4\times 5^1\times {\mathrm{643217}}^1$

素因数の和:643230

約数の個数: 20

約数和(自身を含む): 119638548

約数和(自身を除く): 68181188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 643217, 1286434, 2572868, 3216085, 5145736, 6432170, 10291472, 12864340, 25728680, 51457360]

約数ペア:

[(1, 51457360), (2, 25728680), (4, 12864340), (5, 10291472), (8, 6432170), (10, 5145736), (16, 3216085), (20, 2572868), (40, 1286434), (80, 643217)]