2149225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:429

約数の個数: 24

約数和(自身を含む): 3046680

約数和(自身を除く): 897455

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 389, 425, 1105, 1945, 5057, 5525, 6613, 9725, 25285, 33065, 85969, 126425, 165325, 429845, 2149225]

約数ペア:

[(1, 2149225), (5, 429845), (13, 165325), (17, 126425), (25, 85969), (65, 33065), (85, 25285), (221, 9725), (325, 6613), (389, 5525), (425, 5057), (1105, 1945)]