2008292180

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{887}}^1\times {\mathrm{1433}}^1$

素因数の和:2408

約数の個数: 48

約数和(自身を含む): 4278597120

約数和(自身を除く): 2270304940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 887, 1433, 1580, 1774, 2866, 3548, 4435, 5732, 7165, 8870, 14330, 17740, 28660, 70073, 113207, 140146, 226414, 280292, 350365, 452828, 566035, 700730, 1132070, 1271071, 1401460, 2264140, 2542142, 5084284, 6355355, 12710710, 25421420, 100414609, 200829218, 401658436, 502073045, 1004146090, 2008292180]

約数ペア:

[(1, 2008292180), (2, 1004146090), (4, 502073045), (5, 401658436), (10, 200829218), (20, 100414609), (79, 25421420), (158, 12710710), (316, 6355355), (395, 5084284), (790, 2542142), (887, 2264140), (1433, 1401460), (1580, 1271071), (1774, 1132070), (2866, 700730), (3548, 566035), (4435, 452828), (5732, 350365), (7165, 280292), (8870, 226414), (14330, 140146), (17740, 113207), (28660, 70073)]