81084400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:311

約数の個数: 120

約数和(自身を含む): 210343680

約数和(自身を除く): 129259280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 47, 50, 76, 80, 94, 95, 100, 152, 188, 190, 200, 227, 235, 304, 376, 380, 400, 454, 470, 475, 752, 760, 893, 908, 940, 950, 1135, 1175, 1520, 1786, 1816, 1880, 1900, 2270, 2350, 3572, 3632, 3760, 3800, 4313, 4465, 4540, 4700, 5675, 7144, 7600, 8626, 8930, 9080, 9400, 10669, 11350, 14288, 17252, 17860, 18160, 18800, 21338, 21565, 22325, 22700, 34504, 35720, 42676, 43130, 44650, 45400, 53345, 69008, 71440, 85352, 86260, 89300, 90800, 106690, 107825, 170704, 172520, 178600, 202711, 213380, 215650, 266725, 345040, 357200, 405422, 426760, 431300, 533450, 810844, 853520, 862600, 1013555, 1066900, 1621688, 1725200, 2027110, 2133800, 3243376, 4054220, 4267600, 5067775, 8108440, 10135550, 16216880, 20271100, 40542200, 81084400]

約数ペア:

[(1, 81084400), (2, 40542200), (4, 20271100), (5, 16216880), (8, 10135550), (10, 8108440), (16, 5067775), (19, 4267600), (20, 4054220), (25, 3243376), (38, 2133800), (40, 2027110), (47, 1725200), (50, 1621688), (76, 1066900), (80, 1013555), (94, 862600), (95, 853520), (100, 810844), (152, 533450), (188, 431300), (190, 426760), (200, 405422), (227, 357200), (235, 345040), (304, 266725), (376, 215650), (380, 213380), (400, 202711), (454, 178600), (470, 172520), (475, 170704), (752, 107825), (760, 106690), (893, 90800), (908, 89300), (940, 86260), (950, 85352), (1135, 71440), (1175, 69008), (1520, 53345), (1786, 45400), (1816, 44650), (1880, 43130), (1900, 42676), (2270, 35720), (2350, 34504), (3572, 22700), (3632, 22325), (3760, 21565), (3800, 21338), (4313, 18800), (4465, 18160), (4540, 17860), (4700, 17252), (5675, 14288), (7144, 11350), (7600, 10669), (8626, 9400), (8930, 9080)]