1690840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1031}}^1$

素因数の和:1083

約数の個数: 32

約数和(自身を含む): 3900960

約数和(自身を除く): 2210120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1031, 1640, 2062, 4124, 5155, 8248, 10310, 20620, 41240, 42271, 84542, 169084, 211355, 338168, 422710, 845420, 1690840]

約数ペア:

[(1, 1690840), (2, 845420), (4, 422710), (5, 338168), (8, 211355), (10, 169084), (20, 84542), (40, 42271), (41, 41240), (82, 20620), (164, 10310), (205, 8248), (328, 5155), (410, 4124), (820, 2062), (1031, 1640)]