20395135

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{2647}}^1$

素因数の和:2742

約数の個数: 16

約数和(自身を含む): 25929216

約数和(自身を除く): 5534081

約数列:

[1, 5, 23, 67, 115, 335, 1541, 2647, 7705, 13235, 60881, 177349, 304405, 886745, 4079027, 20395135]

約数ペア:

[(1, 20395135), (5, 4079027), (23, 886745), (67, 304405), (115, 177349), (335, 60881), (1541, 13235), (2647, 7705)]