12656240

素因数分解:

$2^4\times 5^1\times {\mathrm{281}}^1\times {\mathrm{563}}^1$

素因数の和:857

約数の個数: 40

約数和(自身を含む): 29582928

約数和(自身を除く): 16926688

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281, 562, 563, 1124, 1126, 1405, 2248, 2252, 2810, 2815, 4496, 4504, 5620, 5630, 9008, 11240, 11260, 22480, 22520, 45040, 158203, 316406, 632812, 791015, 1265624, 1582030, 2531248, 3164060, 6328120, 12656240]

約数ペア:

[(1, 12656240), (2, 6328120), (4, 3164060), (5, 2531248), (8, 1582030), (10, 1265624), (16, 791015), (20, 632812), (40, 316406), (80, 158203), (281, 45040), (562, 22520), (563, 22480), (1124, 11260), (1126, 11240), (1405, 9008), (2248, 5630), (2252, 5620), (2810, 4504), (2815, 4496)]