79991103620

素因数分解:

$2^2\times 5^1\times {\mathrm{3999555181}}^1$

素因数の和:3999555190

約数の個数: 12

約数和(自身を含む): 167981317644

約数和(自身を除く): 87990214024

約数列:

[1, 2, 4, 5, 10, 20, 3999555181, 7999110362, 15998220724, 19997775905, 39995551810, 79991103620]

約数ペア:

[(1, 79991103620), (2, 39995551810), (4, 19997775905), (5, 15998220724), (10, 7999110362), (20, 3999555181)]