20180490880

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{14551}}^1$

素因数の和:14778

約数の個数: 128

約数和(自身を含む): 52900594560

約数和(自身を除く): 32720103680

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 197, 220, 320, 352, 394, 440, 640, 704, 788, 880, 985, 1408, 1576, 1760, 1970, 2167, 3152, 3520, 3940, 4334, 6304, 7040, 7880, 8668, 10835, 12608, 14551, 15760, 17336, 21670, 25216, 29102, 31520, 34672, 43340, 58204, 63040, 69344, 72755, 86680, 116408, 126080, 138688, 145510, 160061, 173360, 232816, 277376, 291020, 320122, 346720, 465632, 582040, 640244, 693440, 800305, 931264, 1164080, 1280488, 1386880, 1600610, 1862528, 2328160, 2560976, 2866547, 3201220, 4656320, 5121952, 5733094, 6402440, 9312640, 10243904, 11466188, 12804880, 14332735, 20487808, 22932376, 25609760, 28665470, 31532017, 45864752, 51219520, 57330940, 63064034, 91729504, 102439040, 114661880, 126128068, 157660085, 183459008, 229323760, 252256136, 315320170, 366918016, 458647520, 504512272, 630640340, 917295040, 1009024544, 1261280680, 1834590080, 2018049088, 2522561360, 4036098176, 5045122720, 10090245440, 20180490880]

約数ペア:

[(1, 20180490880), (2, 10090245440), (4, 5045122720), (5, 4036098176), (8, 2522561360), (10, 2018049088), (11, 1834590080), (16, 1261280680), (20, 1009024544), (22, 917295040), (32, 630640340), (40, 504512272), (44, 458647520), (55, 366918016), (64, 315320170), (80, 252256136), (88, 229323760), (110, 183459008), (128, 157660085), (160, 126128068), (176, 114661880), (197, 102439040), (220, 91729504), (320, 63064034), (352, 57330940), (394, 51219520), (440, 45864752), (640, 31532017), (704, 28665470), (788, 25609760), (880, 22932376), (985, 20487808), (1408, 14332735), (1576, 12804880), (1760, 11466188), (1970, 10243904), (2167, 9312640), (3152, 6402440), (3520, 5733094), (3940, 5121952), (4334, 4656320), (6304, 3201220), (7040, 2866547), (7880, 2560976), (8668, 2328160), (10835, 1862528), (12608, 1600610), (14551, 1386880), (15760, 1280488), (17336, 1164080), (21670, 931264), (25216, 800305), (29102, 693440), (31520, 640244), (34672, 582040), (43340, 465632), (58204, 346720), (63040, 320122), (69344, 291020), (72755, 277376), (86680, 232816), (116408, 173360), (126080, 160061), (138688, 145510)]