661657220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{4726123}}^1$

素因数の和:4726139

約数の個数: 24

約数和(自身を含む): 1587977664

約数和(自身を除く): 926320444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 4726123, 9452246, 18904492, 23630615, 33082861, 47261230, 66165722, 94522460, 132331444, 165414305, 330828610, 661657220]

約数ペア:

[(1, 661657220), (2, 330828610), (4, 165414305), (5, 132331444), (7, 94522460), (10, 66165722), (14, 47261230), (20, 33082861), (28, 23630615), (35, 18904492), (70, 9452246), (140, 4726123)]