2109580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 48

約数和(自身を含む): 4967424

約数和(自身を除く): 2857844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 223, 430, 446, 473, 860, 892, 946, 1115, 1892, 2230, 2365, 2453, 4460, 4730, 4906, 9460, 9589, 9812, 12265, 19178, 24530, 38356, 47945, 49060, 95890, 105479, 191780, 210958, 421916, 527395, 1054790, 2109580]

約数ペア:

[(1, 2109580), (2, 1054790), (4, 527395), (5, 421916), (10, 210958), (11, 191780), (20, 105479), (22, 95890), (43, 49060), (44, 47945), (55, 38356), (86, 24530), (110, 19178), (172, 12265), (215, 9812), (220, 9589), (223, 9460), (430, 4906), (446, 4730), (473, 4460), (860, 2453), (892, 2365), (946, 2230), (1115, 1892)]