20104145

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1\times {\mathrm{349}}^1$

素因数の和:676

約数の個数: 16

約数和(自身を含む): 24872400

約数和(自身を除く): 4768255

約数列:

[1, 5, 41, 205, 281, 349, 1405, 1745, 11521, 14309, 57605, 71545, 98069, 490345, 4020829, 20104145]

約数ペア:

[(1, 20104145), (5, 4020829), (41, 490345), (205, 98069), (281, 71545), (349, 57605), (1405, 14309), (1745, 11521)]