128575135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{63809}}^1$

素因数の和:63858

約数の個数: 16

約数和(自身を含む): 171521280

約数和(自身を除く): 42946145

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 63809, 319045, 829517, 1978079, 4147585, 9890395, 25715027, 128575135]

約数ペア:

[(1, 128575135), (5, 25715027), (13, 9890395), (31, 4147585), (65, 1978079), (155, 829517), (403, 319045), (2015, 63809)]