2215525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{401}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 3140424

約数和(自身を除く): 924899

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 401, 425, 1105, 2005, 5213, 5525, 6817, 10025, 26065, 34085, 88621, 130325, 170425, 443105, 2215525]

約数ペア:

[(1, 2215525), (5, 443105), (13, 170425), (17, 130325), (25, 88621), (65, 34085), (85, 26065), (221, 10025), (325, 6817), (401, 5525), (425, 5213), (1105, 2005)]