1825780

素因数分解:

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

素因数の和:256

約数の個数: 48

約数和(自身を含む): 4302144

約数和(自身を除く): 2476364

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 193, 215, 220, 386, 430, 473, 772, 860, 946, 965, 1892, 1930, 2123, 2365, 3860, 4246, 4730, 8299, 8492, 9460, 10615, 16598, 21230, 33196, 41495, 42460, 82990, 91289, 165980, 182578, 365156, 456445, 912890, 1825780]

約数ペア:

[(1, 1825780), (2, 912890), (4, 456445), (5, 365156), (10, 182578), (11, 165980), (20, 91289), (22, 82990), (43, 42460), (44, 41495), (55, 33196), (86, 21230), (110, 16598), (172, 10615), (193, 9460), (215, 8492), (220, 8299), (386, 4730), (430, 4246), (473, 3860), (772, 2365), (860, 2123), (946, 1930), (965, 1892)]