68786980

素因数分解:

$2^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{11059}}^1$

素因数の和:11379

約数の個数: 24

約数和(自身を含む): 144930240

約数和(自身を除く): 76143260

約数列:

[1, 2, 4, 5, 10, 20, 311, 622, 1244, 1555, 3110, 6220, 11059, 22118, 44236, 55295, 110590, 221180, 3439349, 6878698, 13757396, 17196745, 34393490, 68786980]

約数ペア:

[(1, 68786980), (2, 34393490), (4, 17196745), (5, 13757396), (10, 6878698), (20, 3439349), (311, 221180), (622, 110590), (1244, 55295), (1555, 44236), (3110, 22118), (6220, 11059)]