79120220

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{15761}}^1$

素因数の和:16021

約数の個数: 24

約数和(自身を含む): 166825008

約数和(自身を除く): 87704788

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 15761, 31522, 63044, 78805, 157610, 315220, 3956011, 7912022, 15824044, 19780055, 39560110, 79120220]

約数ペア:

[(1, 79120220), (2, 39560110), (4, 19780055), (5, 15824044), (10, 7912022), (20, 3956011), (251, 315220), (502, 157610), (1004, 78805), (1255, 63044), (2510, 31522), (5020, 15761)]