20148145

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{293}}^1\times {\mathrm{809}}^1$

素因数の和:1124

約数の個数: 16

約数和(自身を含む): 25719120

約数和(自身を除く): 5570975

約数列:

[1, 5, 17, 85, 293, 809, 1465, 4045, 4981, 13753, 24905, 68765, 237037, 1185185, 4029629, 20148145]

約数ペア:

[(1, 20148145), (5, 4029629), (17, 1185185), (85, 237037), (293, 68765), (809, 24905), (1465, 13753), (4045, 4981)]