31809920

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{2161}}^1$

素因数の和:2203

約数の個数: 64

約数和(自身を含む): 79388640

約数和(自身を除く): 47578720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1472, 1840, 2161, 2944, 3680, 4322, 7360, 8644, 10805, 14720, 17288, 21610, 34576, 43220, 49703, 69152, 86440, 99406, 138304, 172880, 198812, 248515, 276608, 345760, 397624, 497030, 691520, 795248, 994060, 1383040, 1590496, 1988120, 3180992, 3976240, 6361984, 7952480, 15904960, 31809920]

約数ペア:

[(1, 31809920), (2, 15904960), (4, 7952480), (5, 6361984), (8, 3976240), (10, 3180992), (16, 1988120), (20, 1590496), (23, 1383040), (32, 994060), (40, 795248), (46, 691520), (64, 497030), (80, 397624), (92, 345760), (115, 276608), (128, 248515), (160, 198812), (184, 172880), (230, 138304), (320, 99406), (368, 86440), (460, 69152), (640, 49703), (736, 43220), (920, 34576), (1472, 21610), (1840, 17288), (2161, 14720), (2944, 10805), (3680, 8644), (4322, 7360)]