208578145

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{401}}^1\times {\mathrm{4523}}^1$

素因数の和:4952

約数の個数: 16

約数和(自身を含む): 261885312

約数和(自身を除く): 53307167

約数列:

[1, 5, 23, 115, 401, 2005, 4523, 9223, 22615, 46115, 104029, 520145, 1813723, 9068615, 41715629, 208578145]

約数ペア:

[(1, 208578145), (5, 41715629), (23, 9068615), (115, 1813723), (401, 520145), (2005, 104029), (4523, 46115), (9223, 22615)]