12787440

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53281}}^1$

素因数の和:53297

約数の個数: 40

約数和(自身を含む): 39641808

約数和(自身を除く): 26854368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 53281, 106562, 159843, 213124, 266405, 319686, 426248, 532810, 639372, 799215, 852496, 1065620, 1278744, 1598430, 2131240, 2557488, 3196860, 4262480, 6393720, 12787440]

約数ペア:

[(1, 12787440), (2, 6393720), (3, 4262480), (4, 3196860), (5, 2557488), (6, 2131240), (8, 1598430), (10, 1278744), (12, 1065620), (15, 852496), (16, 799215), (20, 639372), (24, 532810), (30, 426248), (40, 319686), (48, 266405), (60, 213124), (80, 159843), (120, 106562), (240, 53281)]