20585900

素因数分解:

$2^2\times 5^2\times {\mathrm{139}}^1\times {\mathrm{1481}}^1$

素因数の和:1634

約数の個数: 36

約数和(自身を含む): 45023160

約数和(自身を除く): 24437260

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 139, 278, 556, 695, 1390, 1481, 2780, 2962, 3475, 5924, 6950, 7405, 13900, 14810, 29620, 37025, 74050, 148100, 205859, 411718, 823436, 1029295, 2058590, 4117180, 5146475, 10292950, 20585900]

約数ペア:

[(1, 20585900), (2, 10292950), (4, 5146475), (5, 4117180), (10, 2058590), (20, 1029295), (25, 823436), (50, 411718), (100, 205859), (139, 148100), (278, 74050), (556, 37025), (695, 29620), (1390, 14810), (1481, 13900), (2780, 7405), (2962, 6950), (3475, 5924)]