20403940828

素因数分解:

$2^2\times {\mathrm{79}}^1\times {\mathrm{64569433}}^1$

素因数の和:64569516

約数の個数: 12

約数和(自身を含む): 36158883040

約数和(自身を除く): 15754942212

約数列:

[1, 2, 4, 79, 158, 316, 64569433, 129138866, 258277732, 5100985207, 10201970414, 20403940828]

約数ペア:

[(1, 20403940828), (2, 10201970414), (4, 5100985207), (79, 258277732), (158, 129138866), (316, 64569433)]