2161866520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{977}}^1$

素因数の和:1153

約数の個数: 128

約数和(自身を含む): 5475548160

約数和(自身を除く): 3313681640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 107, 110, 188, 214, 220, 235, 376, 428, 440, 470, 517, 535, 856, 940, 977, 1034, 1070, 1177, 1880, 1954, 2068, 2140, 2354, 2585, 3908, 4136, 4280, 4708, 4885, 5029, 5170, 5885, 7816, 9416, 9770, 10058, 10340, 10747, 11770, 19540, 20116, 20680, 21494, 23540, 25145, 39080, 40232, 42988, 45919, 47080, 50290, 53735, 55319, 85976, 91838, 100580, 104539, 107470, 110638, 183676, 201160, 209078, 214940, 221276, 229595, 276595, 367352, 418156, 429880, 442552, 459190, 505109, 522695, 553190, 836312, 918380, 1010218, 1045390, 1106380, 1149929, 1836760, 2020436, 2090780, 2212760, 2299858, 2525545, 4040872, 4181560, 4599716, 4913333, 5051090, 5749645, 9199432, 9826666, 10102180, 11499290, 19653332, 20204360, 22998580, 24566665, 39306664, 45997160, 49133330, 54046663, 98266660, 108093326, 196533320, 216186652, 270233315, 432373304, 540466630, 1080933260, 2161866520]

約数ペア:

[(1, 2161866520), (2, 1080933260), (4, 540466630), (5, 432373304), (8, 270233315), (10, 216186652), (11, 196533320), (20, 108093326), (22, 98266660), (40, 54046663), (44, 49133330), (47, 45997160), (55, 39306664), (88, 24566665), (94, 22998580), (107, 20204360), (110, 19653332), (188, 11499290), (214, 10102180), (220, 9826666), (235, 9199432), (376, 5749645), (428, 5051090), (440, 4913333), (470, 4599716), (517, 4181560), (535, 4040872), (856, 2525545), (940, 2299858), (977, 2212760), (1034, 2090780), (1070, 2020436), (1177, 1836760), (1880, 1149929), (1954, 1106380), (2068, 1045390), (2140, 1010218), (2354, 918380), (2585, 836312), (3908, 553190), (4136, 522695), (4280, 505109), (4708, 459190), (4885, 442552), (5029, 429880), (5170, 418156), (5885, 367352), (7816, 276595), (9416, 229595), (9770, 221276), (10058, 214940), (10340, 209078), (10747, 201160), (11770, 183676), (19540, 110638), (20116, 107470), (20680, 104539), (21494, 100580), (23540, 91838), (25145, 85976), (39080, 55319), (40232, 53735), (42988, 50290), (45919, 47080)]