51942160

素因数分解:

$2^4\times 5^1\times {\mathrm{649277}}^1$

素因数の和:649290

約数の個数: 20

約数和(自身を含む): 120765708

約数和(自身を除く): 68823548

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 649277, 1298554, 2597108, 3246385, 5194216, 6492770, 10388432, 12985540, 25971080, 51942160]

約数ペア:

[(1, 51942160), (2, 25971080), (4, 12985540), (5, 10388432), (8, 6492770), (10, 5194216), (16, 3246385), (20, 2597108), (40, 1298554), (80, 649277)]