20199821575

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{19707143}}^1$

素因数の和:19707194

約数の個数: 12

約数和(自身を含む): 25658701488

約数和(自身を除く): 5458879913

約数列:

[1, 5, 25, 41, 205, 1025, 19707143, 98535715, 492678575, 807992863, 4039964315, 20199821575]

約数ペア:

[(1, 20199821575), (5, 4039964315), (25, 807992863), (41, 492678575), (205, 98535715), (1025, 19707143)]