20171112520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1\times {\mathrm{2153}}^1$

素因数の和:2639

約数の個数: 128

約数和(自身を含む): 50155459200

約数和(自身を除く): 29984346680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 130, 172, 215, 260, 344, 419, 430, 520, 559, 838, 860, 1118, 1676, 1720, 2095, 2153, 2236, 2795, 3352, 4190, 4306, 4472, 5447, 5590, 8380, 8612, 10765, 10894, 11180, 16760, 17224, 18017, 21530, 21788, 22360, 27235, 27989, 36034, 43060, 43576, 54470, 55978, 72068, 86120, 90085, 92579, 108940, 111956, 139945, 144136, 180170, 185158, 217880, 223912, 234221, 279890, 360340, 370316, 462895, 468442, 559780, 720680, 740632, 902107, 925790, 936884, 1119560, 1171105, 1203527, 1804214, 1851580, 1873768, 2342210, 2407054, 3608428, 3703160, 4510535, 4684420, 4814108, 6017635, 7216856, 9021070, 9368840, 9628216, 11727391, 12035270, 18042140, 23454782, 24070540, 36084280, 38790601, 46909564, 48141080, 58636955, 77581202, 93819128, 117273910, 155162404, 193953005, 234547820, 310324808, 387906010, 469095640, 504277813, 775812020, 1008555626, 1551624040, 2017111252, 2521389065, 4034222504, 5042778130, 10085556260, 20171112520]

約数ペア:

[(1, 20171112520), (2, 10085556260), (4, 5042778130), (5, 4034222504), (8, 2521389065), (10, 2017111252), (13, 1551624040), (20, 1008555626), (26, 775812020), (40, 504277813), (43, 469095640), (52, 387906010), (65, 310324808), (86, 234547820), (104, 193953005), (130, 155162404), (172, 117273910), (215, 93819128), (260, 77581202), (344, 58636955), (419, 48141080), (430, 46909564), (520, 38790601), (559, 36084280), (838, 24070540), (860, 23454782), (1118, 18042140), (1676, 12035270), (1720, 11727391), (2095, 9628216), (2153, 9368840), (2236, 9021070), (2795, 7216856), (3352, 6017635), (4190, 4814108), (4306, 4684420), (4472, 4510535), (5447, 3703160), (5590, 3608428), (8380, 2407054), (8612, 2342210), (10765, 1873768), (10894, 1851580), (11180, 1804214), (16760, 1203527), (17224, 1171105), (18017, 1119560), (21530, 936884), (21788, 925790), (22360, 902107), (27235, 740632), (27989, 720680), (36034, 559780), (43060, 468442), (43576, 462895), (54470, 370316), (55978, 360340), (72068, 279890), (86120, 234221), (90085, 223912), (92579, 217880), (108940, 185158), (111956, 180170), (139945, 144136)]