2002220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:518

約数の個数: 48

約数和(自身を含む): 4838400

約数和(自身を除く): 2836180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 479, 836, 958, 1045, 1916, 2090, 2395, 4180, 4790, 5269, 9101, 9580, 10538, 18202, 21076, 26345, 36404, 45505, 52690, 91010, 100111, 105380, 182020, 200222, 400444, 500555, 1001110, 2002220]

約数ペア:

[(1, 2002220), (2, 1001110), (4, 500555), (5, 400444), (10, 200222), (11, 182020), (19, 105380), (20, 100111), (22, 91010), (38, 52690), (44, 45505), (55, 36404), (76, 26345), (95, 21076), (110, 18202), (190, 10538), (209, 9580), (220, 9101), (380, 5269), (418, 4790), (479, 4180), (836, 2395), (958, 2090), (1045, 1916)]