208545500

素因数分解:

$2^2\times 5^3\times {\mathrm{631}}^1\times {\mathrm{661}}^1$

素因数の和:1311

約数の個数: 48

約数和(自身を含む): 456875328

約数和(自身を除く): 248329828

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 631, 661, 1262, 1322, 2524, 2644, 3155, 3305, 6310, 6610, 12620, 13220, 15775, 16525, 31550, 33050, 63100, 66100, 78875, 82625, 157750, 165250, 315500, 330500, 417091, 834182, 1668364, 2085455, 4170910, 8341820, 10427275, 20854550, 41709100, 52136375, 104272750, 208545500]

約数ペア:

[(1, 208545500), (2, 104272750), (4, 52136375), (5, 41709100), (10, 20854550), (20, 10427275), (25, 8341820), (50, 4170910), (100, 2085455), (125, 1668364), (250, 834182), (500, 417091), (631, 330500), (661, 315500), (1262, 165250), (1322, 157750), (2524, 82625), (2644, 78875), (3155, 66100), (3305, 63100), (6310, 33050), (6610, 31550), (12620, 16525), (13220, 15775)]