1245285220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{221581}}^1$

素因数の和:221871

約数の個数: 24

約数和(自身を含む): 2624417208

約数和(自身を除く): 1379131988

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 221581, 443162, 886324, 1107905, 2215810, 4431620, 62264261, 124528522, 249057044, 311321305, 622642610, 1245285220]

約数ペア:

[(1, 1245285220), (2, 622642610), (4, 311321305), (5, 249057044), (10, 124528522), (20, 62264261), (281, 4431620), (562, 2215810), (1124, 1107905), (1405, 886324), (2810, 443162), (5620, 221581)]