20041115

素因数分解:

$5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:646

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 4582885

約数列:

[1, 5, 79, 113, 395, 449, 565, 2245, 8927, 35471, 44635, 50737, 177355, 253685, 4008223, 20041115]

約数ペア:

[(1, 20041115), (5, 4008223), (79, 253685), (113, 177355), (395, 50737), (449, 44635), (565, 35471), (2245, 8927)]