7681225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{157}}^1$

素因数の和:289

約数の個数: 24

約数和(自身を含む): 10187840

約数和(自身を除く): 2506615

約数列:

[1, 5, 19, 25, 95, 103, 157, 475, 515, 785, 1957, 2575, 2983, 3925, 9785, 14915, 16171, 48925, 74575, 80855, 307249, 404275, 1536245, 7681225]

約数ペア:

[(1, 7681225), (5, 1536245), (19, 404275), (25, 307249), (95, 80855), (103, 74575), (157, 48925), (475, 16171), (515, 14915), (785, 9785), (1957, 3925), (2575, 2983)]