20545135

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{4001}}^1$

素因数の和:4098

約数の個数: 16

約数和(自身を含む): 26893440

約数和(自身を除く): 6348305

約数列:

[1, 5, 13, 65, 79, 395, 1027, 4001, 5135, 20005, 52013, 260065, 316079, 1580395, 4109027, 20545135]

約数ペア:

[(1, 20545135), (5, 4109027), (13, 1580395), (65, 316079), (79, 260065), (395, 52013), (1027, 20005), (4001, 5135)]