19613225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:449

約数の個数: 24

約数和(自身を含む): 25861440

約数和(自身を除く): 6248215

約数列:

[1, 5, 19, 25, 95, 157, 263, 475, 785, 1315, 2983, 3925, 4997, 6575, 14915, 24985, 41291, 74575, 124925, 206455, 784529, 1032275, 3922645, 19613225]

約数ペア:

[(1, 19613225), (5, 3922645), (19, 1032275), (25, 784529), (95, 206455), (157, 124925), (263, 74575), (475, 41291), (785, 24985), (1315, 14915), (2983, 6575), (3925, 4997)]