20177532940

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{2541251}}^1$

素因数の和:2541657

約数の個数: 24

約数和(自身を含む): 42479568432

約数和(自身を除く): 22302035492

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3970, 7940, 2541251, 5082502, 10165004, 12706255, 25412510, 50825020, 1008876647, 2017753294, 4035506588, 5044383235, 10088766470, 20177532940]

約数ペア:

[(1, 20177532940), (2, 10088766470), (4, 5044383235), (5, 4035506588), (10, 2017753294), (20, 1008876647), (397, 50825020), (794, 25412510), (1588, 12706255), (1985, 10165004), (3970, 5082502), (7940, 2541251)]