20189917205

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1\times {\mathrm{920443}}^1$

素因数の和:920596

約数の個数: 16

約数和(自身を含む): 25050803904

約数和(自身を除く): 4860886699

約数列:

[1, 5, 41, 107, 205, 535, 4387, 21935, 920443, 4602215, 37738163, 98487401, 188690815, 492437005, 4037983441, 20189917205]

約数ペア:

[(1, 20189917205), (5, 4037983441), (41, 492437005), (107, 188690815), (205, 98487401), (535, 37738163), (4387, 4602215), (21935, 920443)]