2540360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1601

約数の個数: 32

約数和(自身を含む): 5859000

約数和(自身を除く): 3318640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1549, 1640, 3098, 6196, 7745, 12392, 15490, 30980, 61960, 63509, 127018, 254036, 317545, 508072, 635090, 1270180, 2540360]

約数ペア:

[(1, 2540360), (2, 1270180), (4, 635090), (5, 508072), (8, 317545), (10, 254036), (20, 127018), (40, 63509), (41, 61960), (82, 30980), (164, 15490), (205, 12392), (328, 7745), (410, 6196), (820, 3098), (1549, 1640)]