81631280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{311}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 202647744

約数和(自身を除く): 121016464

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 193, 272, 311, 340, 386, 622, 680, 772, 965, 1244, 1360, 1544, 1555, 1930, 2488, 3088, 3110, 3281, 3860, 4976, 5287, 6220, 6562, 7720, 10574, 12440, 13124, 15440, 16405, 21148, 24880, 26248, 26435, 32810, 42296, 52496, 52870, 60023, 65620, 84592, 105740, 120046, 131240, 211480, 240092, 262480, 300115, 422960, 480184, 600230, 960368, 1020391, 1200460, 2040782, 2400920, 4081564, 4801840, 5101955, 8163128, 10203910, 16326256, 20407820, 40815640, 81631280]

約数ペア:

[(1, 81631280), (2, 40815640), (4, 20407820), (5, 16326256), (8, 10203910), (10, 8163128), (16, 5101955), (17, 4801840), (20, 4081564), (34, 2400920), (40, 2040782), (68, 1200460), (80, 1020391), (85, 960368), (136, 600230), (170, 480184), (193, 422960), (272, 300115), (311, 262480), (340, 240092), (386, 211480), (622, 131240), (680, 120046), (772, 105740), (965, 84592), (1244, 65620), (1360, 60023), (1544, 52870), (1555, 52496), (1930, 42296), (2488, 32810), (3088, 26435), (3110, 26248), (3281, 24880), (3860, 21148), (4976, 16405), (5287, 15440), (6220, 13124), (6562, 12440), (7720, 10574)]