28049905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{983}}^1$

素因数の和:1440

約数の個数: 16

約数和(自身を含む): 36368640

約数和(自身を除く): 8318735

約数列:

[1, 5, 13, 65, 439, 983, 2195, 4915, 5707, 12779, 28535, 63895, 431537, 2157685, 5609981, 28049905]

約数ペア:

[(1, 28049905), (5, 5609981), (13, 2157685), (65, 431537), (439, 63895), (983, 28535), (2195, 12779), (4915, 5707)]