78917012

素因数分解:

$2^2\times {\mathrm{89}}^1\times {\mathrm{221677}}^1$

素因数の和:221770

約数の個数: 12

約数和(自身を含む): 139657140

約数和(自身を除く): 60740128

約数列:

[1, 2, 4, 89, 178, 356, 221677, 443354, 886708, 19729253, 39458506, 78917012]

約数ペア:

[(1, 78917012), (2, 39458506), (4, 19729253), (89, 886708), (178, 443354), (356, 221677)]