20225855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:287

約数の個数: 32

約数和(自身を含む): 27772416

約数和(自身を除く): 7546561

約数列:

[1, 5, 13, 23, 65, 83, 115, 163, 299, 415, 815, 1079, 1495, 1909, 2119, 3749, 5395, 9545, 10595, 13529, 18745, 24817, 48737, 67645, 124085, 175877, 243685, 311167, 879385, 1555835, 4045171, 20225855]

約数ペア:

[(1, 20225855), (5, 4045171), (13, 1555835), (23, 879385), (65, 311167), (83, 243685), (115, 175877), (163, 124085), (299, 67645), (415, 48737), (815, 24817), (1079, 18745), (1495, 13529), (1909, 10595), (2119, 9545), (3749, 5395)]