264802420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{121469}}^1$

素因数の和:121587

約数の個数: 24

約数和(自身を含む): 561191400

約数和(自身を除く): 296388980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 121469, 242938, 485876, 607345, 1214690, 2429380, 13240121, 26480242, 52960484, 66200605, 132401210, 264802420]

約数ペア:

[(1, 264802420), (2, 132401210), (4, 66200605), (5, 52960484), (10, 26480242), (20, 13240121), (109, 2429380), (218, 1214690), (436, 607345), (545, 485876), (1090, 242938), (2180, 121469)]