20121247945

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{900481}}^1$

素因数の和:900636

約数の個数: 16

約数和(自身を含む): 24961361040

約数和(自身を除く): 4840113095

約数列:

[1, 5, 41, 109, 205, 545, 4469, 22345, 900481, 4502405, 36919721, 98152429, 184598605, 490762145, 4024249589, 20121247945]

約数ペア:

[(1, 20121247945), (5, 4024249589), (41, 490762145), (109, 184598605), (205, 98152429), (545, 36919721), (4469, 4502405), (22345, 900481)]