208818280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{2459}}^1$

素因数の和:2674

約数の個数: 64

約数和(自身を含む): 515419200

約数和(自身を除く): 306600920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 193, 220, 386, 440, 772, 965, 1544, 1930, 2123, 2459, 3860, 4246, 4918, 7720, 8492, 9836, 10615, 12295, 16984, 19672, 21230, 24590, 27049, 42460, 49180, 54098, 84920, 98360, 108196, 135245, 216392, 270490, 474587, 540980, 949174, 1081960, 1898348, 2372935, 3796696, 4745870, 5220457, 9491740, 10440914, 18983480, 20881828, 26102285, 41763656, 52204570, 104409140, 208818280]

約数ペア:

[(1, 208818280), (2, 104409140), (4, 52204570), (5, 41763656), (8, 26102285), (10, 20881828), (11, 18983480), (20, 10440914), (22, 9491740), (40, 5220457), (44, 4745870), (55, 3796696), (88, 2372935), (110, 1898348), (193, 1081960), (220, 949174), (386, 540980), (440, 474587), (772, 270490), (965, 216392), (1544, 135245), (1930, 108196), (2123, 98360), (2459, 84920), (3860, 54098), (4246, 49180), (4918, 42460), (7720, 27049), (8492, 24590), (9836, 21230), (10615, 19672), (12295, 16984)]