2016647320

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1229663}}^1$

素因数の和:1229715

約数の個数: 32

約数和(自身を含む): 4648129920

約数和(自身を除く): 2631482600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 1229663, 2459326, 4918652, 6148315, 9837304, 12296630, 24593260, 49186520, 50416183, 100832366, 201664732, 252080915, 403329464, 504161830, 1008323660, 2016647320]

約数ペア:

[(1, 2016647320), (2, 1008323660), (4, 504161830), (5, 403329464), (8, 252080915), (10, 201664732), (20, 100832366), (40, 50416183), (41, 49186520), (82, 24593260), (164, 12296630), (205, 9837304), (328, 6148315), (410, 4918652), (820, 2459326), (1640, 1229663)]