656845280

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:461

約数の個数: 192

約数和(自身を含む): 1927981440

約数和(自身を除く): 1271136160

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 182, 197, 208, 224, 229, 260, 280, 364, 394, 416, 455, 458, 520, 560, 728, 788, 910, 916, 985, 1040, 1120, 1145, 1379, 1456, 1576, 1603, 1820, 1832, 1970, 2080, 2290, 2561, 2758, 2912, 2977, 3152, 3206, 3640, 3664, 3940, 4580, 5122, 5516, 5954, 6304, 6412, 6895, 7280, 7328, 7880, 8015, 9160, 10244, 11032, 11908, 12805, 12824, 13790, 14560, 14885, 15760, 16030, 17927, 18320, 20488, 20839, 22064, 23816, 25610, 25648, 27580, 29770, 31520, 32060, 35854, 36640, 40976, 41678, 44128, 45113, 47632, 51220, 51296, 55160, 59540, 64120, 71708, 81952, 83356, 89635, 90226, 95264, 102440, 104195, 110320, 119080, 128240, 143416, 166712, 179270, 180452, 204880, 208390, 220640, 225565, 238160, 256480, 286832, 315791, 333424, 358540, 360904, 409760, 416780, 451130, 476320, 573664, 586469, 631582, 666848, 717080, 721808, 833560, 902260, 1172938, 1263164, 1434160, 1443616, 1578955, 1667120, 1804520, 2345876, 2526328, 2868320, 2932345, 3157910, 3334240, 3609040, 4105283, 4691752, 5052656, 5864690, 6315820, 7218080, 8210566, 9383504, 10105312, 11729380, 12631640, 16421132, 18767008, 20526415, 23458760, 25263280, 32842264, 41052830, 46917520, 50526560, 65684528, 82105660, 93835040, 131369056, 164211320, 328422640, 656845280]

約数ペア:

[(1, 656845280), (2, 328422640), (4, 164211320), (5, 131369056), (7, 93835040), (8, 82105660), (10, 65684528), (13, 50526560), (14, 46917520), (16, 41052830), (20, 32842264), (26, 25263280), (28, 23458760), (32, 20526415), (35, 18767008), (40, 16421132), (52, 12631640), (56, 11729380), (65, 10105312), (70, 9383504), (80, 8210566), (91, 7218080), (104, 6315820), (112, 5864690), (130, 5052656), (140, 4691752), (160, 4105283), (182, 3609040), (197, 3334240), (208, 3157910), (224, 2932345), (229, 2868320), (260, 2526328), (280, 2345876), (364, 1804520), (394, 1667120), (416, 1578955), (455, 1443616), (458, 1434160), (520, 1263164), (560, 1172938), (728, 902260), (788, 833560), (910, 721808), (916, 717080), (985, 666848), (1040, 631582), (1120, 586469), (1145, 573664), (1379, 476320), (1456, 451130), (1576, 416780), (1603, 409760), (1820, 360904), (1832, 358540), (1970, 333424), (2080, 315791), (2290, 286832), (2561, 256480), (2758, 238160), (2912, 225565), (2977, 220640), (3152, 208390), (3206, 204880), (3640, 180452), (3664, 179270), (3940, 166712), (4580, 143416), (5122, 128240), (5516, 119080), (5954, 110320), (6304, 104195), (6412, 102440), (6895, 95264), (7280, 90226), (7328, 89635), (7880, 83356), (8015, 81952), (9160, 71708), (10244, 64120), (11032, 59540), (11908, 55160), (12805, 51296), (12824, 51220), (13790, 47632), (14560, 45113), (14885, 44128), (15760, 41678), (16030, 40976), (17927, 36640), (18320, 35854), (20488, 32060), (20839, 31520), (22064, 29770), (23816, 27580), (25610, 25648)]