20400655

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{16127}}^1$

素因数の和:16166

約数の個数: 16

約数和(自身を含む): 27869184

約数和(自身を除く): 7468529

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 16127, 80635, 177397, 370921, 886985, 1854605, 4080131, 20400655]

約数ペア:

[(1, 20400655), (5, 4080131), (11, 1854605), (23, 886985), (55, 370921), (115, 177397), (253, 80635), (1265, 16127)]