20196560

素因数分解:

$2^4\times 5^1\times {\mathrm{252457}}^1$

素因数の和:252470

約数の個数: 20

約数和(自身を含む): 46957188

約数和(自身を除く): 26760628

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252457, 504914, 1009828, 1262285, 2019656, 2524570, 4039312, 5049140, 10098280, 20196560]

約数ペア:

[(1, 20196560), (2, 10098280), (4, 5049140), (5, 4039312), (8, 2524570), (10, 2019656), (16, 1262285), (20, 1009828), (40, 504914), (80, 252457)]