28199165

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{439}}^1\times {\mathrm{443}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 35164800

約数和(自身を除く): 6965635

約数列:

[1, 5, 29, 145, 439, 443, 2195, 2215, 12731, 12847, 63655, 64235, 194477, 972385, 5639833, 28199165]

約数ペア:

[(1, 28199165), (5, 5639833), (29, 972385), (145, 194477), (439, 64235), (443, 63655), (2195, 12847), (2215, 12731)]