12704800

素因数分解:

$2^5\times 5^2\times {\mathrm{15881}}^1$

素因数の和:15901

約数の個数: 36

約数和(自身を含む): 31017546

約数和(自身を除く): 18312746

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 15881, 31762, 63524, 79405, 127048, 158810, 254096, 317620, 397025, 508192, 635240, 794050, 1270480, 1588100, 2540960, 3176200, 6352400, 12704800]

約数ペア:

[(1, 12704800), (2, 6352400), (4, 3176200), (5, 2540960), (8, 1588100), (10, 1270480), (16, 794050), (20, 635240), (25, 508192), (32, 397025), (40, 317620), (50, 254096), (80, 158810), (100, 127048), (160, 79405), (200, 63524), (400, 31762), (800, 15881)]