2019776920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{251}}^1\times {\mathrm{991}}^1$

素因数の和:1289

約数の個数: 128

約数和(自身を含む): 5399654400

約数和(自身を除く): 3379877480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 29, 35, 40, 56, 58, 70, 116, 140, 145, 203, 232, 251, 280, 290, 406, 502, 580, 812, 991, 1004, 1015, 1160, 1255, 1624, 1757, 1982, 2008, 2030, 2510, 3514, 3964, 4060, 4955, 5020, 6937, 7028, 7279, 7928, 8120, 8785, 9910, 10040, 13874, 14056, 14558, 17570, 19820, 27748, 28739, 29116, 34685, 35140, 36395, 39640, 50953, 55496, 57478, 58232, 69370, 70280, 72790, 101906, 114956, 138740, 143695, 145580, 201173, 203812, 229912, 248741, 254765, 277480, 287390, 291160, 402346, 407624, 497482, 509530, 574780, 804692, 994964, 1005865, 1019060, 1149560, 1243705, 1609384, 1741187, 1989928, 2011730, 2038120, 2487410, 3482374, 4023460, 4974820, 6964748, 7213489, 8046920, 8705935, 9949640, 13929496, 14426978, 17411870, 28853956, 34823740, 36067445, 50494423, 57707912, 69647480, 72134890, 100988846, 144269780, 201977692, 252472115, 288539560, 403955384, 504944230, 1009888460, 2019776920]

約数ペア:

[(1, 2019776920), (2, 1009888460), (4, 504944230), (5, 403955384), (7, 288539560), (8, 252472115), (10, 201977692), (14, 144269780), (20, 100988846), (28, 72134890), (29, 69647480), (35, 57707912), (40, 50494423), (56, 36067445), (58, 34823740), (70, 28853956), (116, 17411870), (140, 14426978), (145, 13929496), (203, 9949640), (232, 8705935), (251, 8046920), (280, 7213489), (290, 6964748), (406, 4974820), (502, 4023460), (580, 3482374), (812, 2487410), (991, 2038120), (1004, 2011730), (1015, 1989928), (1160, 1741187), (1255, 1609384), (1624, 1243705), (1757, 1149560), (1982, 1019060), (2008, 1005865), (2030, 994964), (2510, 804692), (3514, 574780), (3964, 509530), (4060, 497482), (4955, 407624), (5020, 402346), (6937, 291160), (7028, 287390), (7279, 277480), (7928, 254765), (8120, 248741), (8785, 229912), (9910, 203812), (10040, 201173), (13874, 145580), (14056, 143695), (14558, 138740), (17570, 114956), (19820, 101906), (27748, 72790), (28739, 70280), (29116, 69370), (34685, 58232), (35140, 57478), (36395, 55496), (39640, 50953)]