20002515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1531}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 35003136

約数和(自身を除く): 15000621

約数列:

[1, 3, 5, 13, 15, 39, 65, 67, 195, 201, 335, 871, 1005, 1531, 2613, 4355, 4593, 7655, 13065, 19903, 22965, 59709, 99515, 102577, 298545, 307731, 512885, 1333501, 1538655, 4000503, 6667505, 20002515]

約数ペア:

[(1, 20002515), (3, 6667505), (5, 4000503), (13, 1538655), (15, 1333501), (39, 512885), (65, 307731), (67, 298545), (195, 102577), (201, 99515), (335, 59709), (871, 22965), (1005, 19903), (1531, 13065), (2613, 7655), (4355, 4593)]