217209920

素因数分解:

$2^6\times 5^1\times {\mathrm{193}}^1\times {\mathrm{3517}}^1$

素因数の和:3727

約数の個数: 56

約数和(自身を含む): 520058904

約数和(自身を除く): 302848984

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 193, 320, 386, 772, 965, 1544, 1930, 3088, 3517, 3860, 6176, 7034, 7720, 12352, 14068, 15440, 17585, 28136, 30880, 35170, 56272, 61760, 70340, 112544, 140680, 225088, 281360, 562720, 678781, 1125440, 1357562, 2715124, 3393905, 5430248, 6787810, 10860496, 13575620, 21720992, 27151240, 43441984, 54302480, 108604960, 217209920]

約数ペア:

[(1, 217209920), (2, 108604960), (4, 54302480), (5, 43441984), (8, 27151240), (10, 21720992), (16, 13575620), (20, 10860496), (32, 6787810), (40, 5430248), (64, 3393905), (80, 2715124), (160, 1357562), (193, 1125440), (320, 678781), (386, 562720), (772, 281360), (965, 225088), (1544, 140680), (1930, 112544), (3088, 70340), (3517, 61760), (3860, 56272), (6176, 35170), (7034, 30880), (7720, 28136), (12352, 17585), (14068, 15440)]