1782680

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1087}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 4112640

約数和(自身を除く): 2329960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1087, 1640, 2174, 4348, 5435, 8696, 10870, 21740, 43480, 44567, 89134, 178268, 222835, 356536, 445670, 891340, 1782680]

約数ペア:

[(1, 1782680), (2, 891340), (4, 445670), (5, 356536), (8, 222835), (10, 178268), (20, 89134), (40, 44567), (41, 43480), (82, 21740), (164, 10870), (205, 8696), (328, 5435), (410, 4348), (820, 2174), (1087, 1640)]