261605380

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{46549}}^1$

素因数の和:46839

約数の個数: 24

約数和(自身を含む): 551338200

約数和(自身を除く): 289732820

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 46549, 93098, 186196, 232745, 465490, 930980, 13080269, 26160538, 52321076, 65401345, 130802690, 261605380]

約数ペア:

[(1, 261605380), (2, 130802690), (4, 65401345), (5, 52321076), (10, 26160538), (20, 13080269), (281, 930980), (562, 465490), (1124, 232745), (1405, 186196), (2810, 93098), (5620, 46549)]