4090520

素因数分解:

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

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 10711440

約数和(自身を除く): 6620920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 2087, 4174, 8348, 10435, 14609, 16696, 20870, 29218, 41740, 58436, 73045, 83480, 102263, 116872, 146090, 204526, 292180, 409052, 511315, 584360, 818104, 1022630, 2045260, 4090520]

約数ペア:

[(1, 4090520), (2, 2045260), (4, 1022630), (5, 818104), (7, 584360), (8, 511315), (10, 409052), (14, 292180), (20, 204526), (28, 146090), (35, 116872), (40, 102263), (49, 83480), (56, 73045), (70, 58436), (98, 41740), (140, 29218), (196, 20870), (245, 16696), (280, 14609), (392, 10435), (490, 8348), (980, 4174), (1960, 2087)]