28711520

素因数分解:

$2^5\times 5^1\times {\mathrm{311}}^1\times {\mathrm{577}}^1$

素因数の和:903

約数の個数: 48

約数和(自身を含む): 68167008

約数和(自身を除く): 39455488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 311, 577, 622, 1154, 1244, 1555, 2308, 2488, 2885, 3110, 4616, 4976, 5770, 6220, 9232, 9952, 11540, 12440, 18464, 23080, 24880, 46160, 49760, 92320, 179447, 358894, 717788, 897235, 1435576, 1794470, 2871152, 3588940, 5742304, 7177880, 14355760, 28711520]

約数ペア:

[(1, 28711520), (2, 14355760), (4, 7177880), (5, 5742304), (8, 3588940), (10, 2871152), (16, 1794470), (20, 1435576), (32, 897235), (40, 717788), (80, 358894), (160, 179447), (311, 92320), (577, 49760), (622, 46160), (1154, 24880), (1244, 23080), (1555, 18464), (2308, 12440), (2488, 11540), (2885, 9952), (3110, 9232), (4616, 6220), (4976, 5770)]