8008880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:522

約数の個数: 80

約数和(自身を含む): 21427200

約数和(自身を除く): 13418320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 38, 40, 44, 55, 76, 80, 88, 95, 110, 152, 176, 190, 209, 220, 304, 380, 418, 440, 479, 760, 836, 880, 958, 1045, 1520, 1672, 1916, 2090, 2395, 3344, 3832, 4180, 4790, 5269, 7664, 8360, 9101, 9580, 10538, 16720, 18202, 19160, 21076, 26345, 36404, 38320, 42152, 45505, 52690, 72808, 84304, 91010, 100111, 105380, 145616, 182020, 200222, 210760, 364040, 400444, 421520, 500555, 728080, 800888, 1001110, 1601776, 2002220, 4004440, 8008880]

約数ペア:

[(1, 8008880), (2, 4004440), (4, 2002220), (5, 1601776), (8, 1001110), (10, 800888), (11, 728080), (16, 500555), (19, 421520), (20, 400444), (22, 364040), (38, 210760), (40, 200222), (44, 182020), (55, 145616), (76, 105380), (80, 100111), (88, 91010), (95, 84304), (110, 72808), (152, 52690), (176, 45505), (190, 42152), (209, 38320), (220, 36404), (304, 26345), (380, 21076), (418, 19160), (440, 18202), (479, 16720), (760, 10538), (836, 9580), (880, 9101), (958, 8360), (1045, 7664), (1520, 5269), (1672, 4790), (1916, 4180), (2090, 3832), (2395, 3344)]