81657245

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{3923}}^1$

素因数の和:4132

約数の個数: 16

約数和(自身を含む): 102840192

約数和(自身を除く): 21182947

約数列:

[1, 5, 23, 115, 181, 905, 3923, 4163, 19615, 20815, 90229, 451145, 710063, 3550315, 16331449, 81657245]

約数ペア:

[(1, 81657245), (5, 16331449), (23, 3550315), (115, 710063), (181, 451145), (905, 90229), (3923, 20815), (4163, 19615)]