20452600

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{2087}}^1$

素因数の和:2117

約数の個数: 72

約数和(自身を含む): 55342440

約数和(自身を除く): 34889840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2087, 2450, 4174, 4900, 8348, 9800, 10435, 14609, 16696, 20870, 29218, 41740, 52175, 58436, 73045, 83480, 102263, 104350, 116872, 146090, 204526, 208700, 292180, 365225, 409052, 417400, 511315, 584360, 730450, 818104, 1022630, 1460900, 2045260, 2556575, 2921800, 4090520, 5113150, 10226300, 20452600]

約数ペア:

[(1, 20452600), (2, 10226300), (4, 5113150), (5, 4090520), (7, 2921800), (8, 2556575), (10, 2045260), (14, 1460900), (20, 1022630), (25, 818104), (28, 730450), (35, 584360), (40, 511315), (49, 417400), (50, 409052), (56, 365225), (70, 292180), (98, 208700), (100, 204526), (140, 146090), (175, 116872), (196, 104350), (200, 102263), (245, 83480), (280, 73045), (350, 58436), (392, 52175), (490, 41740), (700, 29218), (980, 20870), (1225, 16696), (1400, 14609), (1960, 10435), (2087, 9800), (2450, 8348), (4174, 4900)]