20389608

素因数分解:

$2^3\times 3^2\times {\mathrm{503}}^1\times {\mathrm{563}}^1$

素因数の和:1078

約数の個数: 48

約数和(自身を含む): 55429920

約数和(自身を除く): 35040312

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 503, 563, 1006, 1126, 1509, 1689, 2012, 2252, 3018, 3378, 4024, 4504, 4527, 5067, 6036, 6756, 9054, 10134, 12072, 13512, 18108, 20268, 36216, 40536, 283189, 566378, 849567, 1132756, 1699134, 2265512, 2548701, 3398268, 5097402, 6796536, 10194804, 20389608]

約数ペア:

[(1, 20389608), (2, 10194804), (3, 6796536), (4, 5097402), (6, 3398268), (8, 2548701), (9, 2265512), (12, 1699134), (18, 1132756), (24, 849567), (36, 566378), (72, 283189), (503, 40536), (563, 36216), (1006, 20268), (1126, 18108), (1509, 13512), (1689, 12072), (2012, 10134), (2252, 9054), (3018, 6756), (3378, 6036), (4024, 5067), (4504, 4527)]