12728980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{57859}}^1$

素因数の和:57879

約数の個数: 24

約数和(自身を含む): 29161440

約数和(自身を除く): 16432460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 57859, 115718, 231436, 289295, 578590, 636449, 1157180, 1272898, 2545796, 3182245, 6364490, 12728980]

約数ペア:

[(1, 12728980), (2, 6364490), (4, 3182245), (5, 2545796), (10, 1272898), (11, 1157180), (20, 636449), (22, 578590), (44, 289295), (55, 231436), (110, 115718), (220, 57859)]