15970825

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{313}}^1$

素因数の和:493

約数の個数: 24

約数和(自身を含む): 21531608

約数和(自身を除く): 5560783

約数列:

[1, 5, 13, 25, 65, 157, 313, 325, 785, 1565, 2041, 3925, 4069, 7825, 10205, 20345, 49141, 51025, 101725, 245705, 638833, 1228525, 3194165, 15970825]

約数ペア:

[(1, 15970825), (5, 3194165), (13, 1228525), (25, 638833), (65, 245705), (157, 101725), (313, 51025), (325, 49141), (785, 20345), (1565, 10205), (2041, 7825), (3925, 4069)]