1555625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:170

約数の個数: 20

約数和(自身を含む): 2061840

約数和(自身を除く): 506215

約数列:

[1, 5, 19, 25, 95, 125, 131, 475, 625, 655, 2375, 2489, 3275, 11875, 12445, 16375, 62225, 81875, 311125, 1555625]

約数ペア:

[(1, 1555625), (5, 311125), (19, 81875), (25, 62225), (95, 16375), (125, 12445), (131, 11875), (475, 3275), (625, 2489), (655, 2375)]