20100304820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{563}}^1\times {\mathrm{1999}}^1$

素因数の和:2637

約数の個数: 96

約数和(自身を含む): 45480960000

約数和(自身を除く): 25380655180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 563, 893, 940, 1126, 1786, 1999, 2252, 2815, 3572, 3998, 4465, 5630, 7996, 8930, 9995, 10697, 11260, 17860, 19990, 21394, 26461, 37981, 39980, 42788, 52922, 53485, 75962, 93953, 105844, 106970, 132305, 151924, 187906, 189905, 213940, 264610, 375812, 379810, 469765, 502759, 529220, 759620, 939530, 1005518, 1125437, 1785107, 1879060, 2011036, 2250874, 2513795, 3570214, 4501748, 5027590, 5627185, 7140428, 8925535, 10055180, 11254370, 17851070, 21383303, 22508740, 35702140, 42766606, 52895539, 85533212, 105791078, 106916515, 211582156, 213833030, 264477695, 427666060, 528955390, 1005015241, 1057910780, 2010030482, 4020060964, 5025076205, 10050152410, 20100304820]

約数ペア:

[(1, 20100304820), (2, 10050152410), (4, 5025076205), (5, 4020060964), (10, 2010030482), (19, 1057910780), (20, 1005015241), (38, 528955390), (47, 427666060), (76, 264477695), (94, 213833030), (95, 211582156), (188, 106916515), (190, 105791078), (235, 85533212), (380, 52895539), (470, 42766606), (563, 35702140), (893, 22508740), (940, 21383303), (1126, 17851070), (1786, 11254370), (1999, 10055180), (2252, 8925535), (2815, 7140428), (3572, 5627185), (3998, 5027590), (4465, 4501748), (5630, 3570214), (7996, 2513795), (8930, 2250874), (9995, 2011036), (10697, 1879060), (11260, 1785107), (17860, 1125437), (19990, 1005518), (21394, 939530), (26461, 759620), (37981, 529220), (39980, 502759), (42788, 469765), (52922, 379810), (53485, 375812), (75962, 264610), (93953, 213940), (105844, 189905), (106970, 187906), (132305, 151924)]