25817975

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{239}}^1$

素因数の和:427

約数の個数: 24

約数和(自身を含む): 33480000

約数和(自身を除く): 7662025

約数列:

[1, 5, 25, 29, 145, 149, 239, 725, 745, 1195, 3725, 4321, 5975, 6931, 21605, 34655, 35611, 108025, 173275, 178055, 890275, 1032719, 5163595, 25817975]

約数ペア:

[(1, 25817975), (5, 5163595), (25, 1032719), (29, 890275), (145, 178055), (149, 173275), (239, 108025), (725, 35611), (745, 34655), (1195, 21605), (3725, 6931), (4321, 5975)]