87217225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{1259}}^1$

素因数の和:1449

約数の個数: 24

約数和(自身を含む): 115305120

約数和(自身を除く): 28087895

約数列:

[1, 5, 17, 25, 85, 163, 425, 815, 1259, 2771, 4075, 6295, 13855, 21403, 31475, 69275, 107015, 205217, 535075, 1026085, 3488689, 5130425, 17443445, 87217225]

約数ペア:

[(1, 87217225), (5, 17443445), (17, 5130425), (25, 3488689), (85, 1026085), (163, 535075), (425, 205217), (815, 107015), (1259, 69275), (2771, 31475), (4075, 21403), (6295, 13855)]