20083580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 47682096

約数和(自身を除く): 27598516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 121, 172, 193, 215, 220, 242, 386, 430, 473, 484, 605, 772, 860, 946, 965, 1210, 1892, 1930, 2123, 2365, 2420, 3860, 4246, 4730, 5203, 8299, 8492, 9460, 10406, 10615, 16598, 20812, 21230, 23353, 26015, 33196, 41495, 42460, 46706, 52030, 82990, 91289, 93412, 104060, 116765, 165980, 182578, 233530, 365156, 456445, 467060, 912890, 1004179, 1825780, 2008358, 4016716, 5020895, 10041790, 20083580]

約数ペア:

[(1, 20083580), (2, 10041790), (4, 5020895), (5, 4016716), (10, 2008358), (11, 1825780), (20, 1004179), (22, 912890), (43, 467060), (44, 456445), (55, 365156), (86, 233530), (110, 182578), (121, 165980), (172, 116765), (193, 104060), (215, 93412), (220, 91289), (242, 82990), (386, 52030), (430, 46706), (473, 42460), (484, 41495), (605, 33196), (772, 26015), (860, 23353), (946, 21230), (965, 20812), (1210, 16598), (1892, 10615), (1930, 10406), (2123, 9460), (2365, 8492), (2420, 8299), (3860, 5203), (4246, 4730)]