18311680

素因数分解:

$2^9\times 5^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:357

約数の個数: 80

約数和(自身を含む): 45961344

約数和(自身を除く): 27649664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 311, 320, 368, 460, 512, 622, 640, 736, 920, 1244, 1280, 1472, 1555, 1840, 2488, 2560, 2944, 3110, 3680, 4976, 5888, 6220, 7153, 7360, 9952, 11776, 12440, 14306, 14720, 19904, 24880, 28612, 29440, 35765, 39808, 49760, 57224, 58880, 71530, 79616, 99520, 114448, 143060, 159232, 199040, 228896, 286120, 398080, 457792, 572240, 796160, 915584, 1144480, 1831168, 2288960, 3662336, 4577920, 9155840, 18311680]

約数ペア:

[(1, 18311680), (2, 9155840), (4, 4577920), (5, 3662336), (8, 2288960), (10, 1831168), (16, 1144480), (20, 915584), (23, 796160), (32, 572240), (40, 457792), (46, 398080), (64, 286120), (80, 228896), (92, 199040), (115, 159232), (128, 143060), (160, 114448), (184, 99520), (230, 79616), (256, 71530), (311, 58880), (320, 57224), (368, 49760), (460, 39808), (512, 35765), (622, 29440), (640, 28612), (736, 24880), (920, 19904), (1244, 14720), (1280, 14306), (1472, 12440), (1555, 11776), (1840, 9952), (2488, 7360), (2560, 7153), (2944, 6220), (3110, 5888), (3680, 4976)]