19220725

素因数分解:

$5^2\times {\mathrm{59}}^1\times {\mathrm{83}}^1\times {\mathrm{157}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 24685920

約数和(自身を除く): 5465195

約数列:

[1, 5, 25, 59, 83, 157, 295, 415, 785, 1475, 2075, 3925, 4897, 9263, 13031, 24485, 46315, 65155, 122425, 231575, 325775, 768829, 3844145, 19220725]

約数ペア:

[(1, 19220725), (5, 3844145), (25, 768829), (59, 325775), (83, 231575), (157, 122425), (295, 65155), (415, 46315), (785, 24485), (1475, 13031), (2075, 9263), (3925, 4897)]