28785520

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1031}}^1$

素因数の和:1393

約数の個数: 40

約数和(自身を含む): 67183200

約数和(自身を除く): 38397680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1031, 1396, 1745, 2062, 2792, 3490, 4124, 5155, 5584, 6980, 8248, 10310, 13960, 16496, 20620, 27920, 41240, 82480, 359819, 719638, 1439276, 1799095, 2878552, 3598190, 5757104, 7196380, 14392760, 28785520]

約数ペア:

[(1, 28785520), (2, 14392760), (4, 7196380), (5, 5757104), (8, 3598190), (10, 2878552), (16, 1799095), (20, 1439276), (40, 719638), (80, 359819), (349, 82480), (698, 41240), (1031, 27920), (1396, 20620), (1745, 16496), (2062, 13960), (2792, 10310), (3490, 8248), (4124, 6980), (5155, 5584)]