804500360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{490549}}^1$

素因数の和:490601

約数の個数: 32

約数和(自身を含む): 1854279000

約数和(自身を除く): 1049778640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 490549, 981098, 1962196, 2452745, 3924392, 4905490, 9810980, 19621960, 20112509, 40225018, 80450036, 100562545, 160900072, 201125090, 402250180, 804500360]

約数ペア:

[(1, 804500360), (2, 402250180), (4, 201125090), (5, 160900072), (8, 100562545), (10, 80450036), (20, 40225018), (40, 20112509), (41, 19621960), (82, 9810980), (164, 4905490), (205, 3924392), (328, 2452745), (410, 1962196), (820, 981098), (1640, 490549)]