15972905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{7927}}^1$

素因数の和:7976

約数の個数: 16

約数和(自身を含む): 21310464

約数和(自身を除く): 5337559

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 7927, 39635, 103051, 245737, 515255, 1228685, 3194581, 15972905]

約数ペア:

[(1, 15972905), (5, 3194581), (13, 1228685), (31, 515255), (65, 245737), (155, 103051), (403, 39635), (2015, 7927)]