257748235

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1227

約数の個数: 32

約数和(自身を含む): 337582080

約数和(自身を除く): 79833845

約数列:

[1, 5, 23, 43, 47, 115, 215, 235, 989, 1081, 1109, 2021, 4945, 5405, 5545, 10105, 25507, 46483, 47687, 52123, 127535, 232415, 238435, 260615, 1096801, 1198829, 2241289, 5484005, 5994145, 11206445, 51549647, 257748235]

約数ペア:

[(1, 257748235), (5, 51549647), (23, 11206445), (43, 5994145), (47, 5484005), (115, 2241289), (215, 1198829), (235, 1096801), (989, 260615), (1081, 238435), (1109, 232415), (2021, 127535), (4945, 52123), (5405, 47687), (5545, 46483), (10105, 25507)]