20197102550

素因数分解:

$2^1\times 5^2\times {\mathrm{1009}}^1\times {\mathrm{400339}}^1$

素因数の和:401360

約数の個数: 24

約数和(自身を含む): 37603936200

約数和(自身を除く): 17406833650

約数列:

[1, 2, 5, 10, 25, 50, 1009, 2018, 5045, 10090, 25225, 50450, 400339, 800678, 2001695, 4003390, 10008475, 20016950, 403942051, 807884102, 2019710255, 4039420510, 10098551275, 20197102550]

約数ペア:

[(1, 20197102550), (2, 10098551275), (5, 4039420510), (10, 2019710255), (25, 807884102), (50, 403942051), (1009, 20016950), (2018, 10008475), (5045, 4003390), (10090, 2001695), (25225, 800678), (50450, 400339)]