20512125220

素因数分解:

$2^2\times 5^1\times {\mathrm{1025606261}}^1$

素因数の和:1025606270

約数の個数: 12

約数和(自身を含む): 43075463004

約数和(自身を除く): 22563337784

約数列:

[1, 2, 4, 5, 10, 20, 1025606261, 2051212522, 4102425044, 5128031305, 10256062610, 20512125220]

約数ペア:

[(1, 20512125220), (2, 10256062610), (4, 5128031305), (5, 4102425044), (10, 2051212522), (20, 1025606261)]