65140580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{29881}}^1$

素因数の和:29999

約数の個数: 24

約数和(自身を含む): 138054840

約数和(自身を除く): 72914260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 29881, 59762, 119524, 149405, 298810, 597620, 3257029, 6514058, 13028116, 16285145, 32570290, 65140580]

約数ペア:

[(1, 65140580), (2, 32570290), (4, 16285145), (5, 13028116), (10, 6514058), (20, 3257029), (109, 597620), (218, 298810), (436, 149405), (545, 119524), (1090, 59762), (2180, 29881)]