19728207680

素因数分解:

$2^6\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1987}}^1$

素因数の和:2117

約数の個数: 224

約数和(自身を含む): 52353423360

約数和(自身を除く): 32625215680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 23, 32, 38, 40, 46, 64, 71, 76, 80, 92, 95, 115, 142, 152, 160, 184, 190, 230, 284, 304, 320, 355, 368, 380, 437, 460, 568, 608, 710, 736, 760, 874, 920, 1136, 1216, 1349, 1420, 1472, 1520, 1633, 1748, 1840, 1987, 2185, 2272, 2698, 2840, 3040, 3266, 3496, 3680, 3974, 4370, 4544, 5396, 5680, 6080, 6532, 6745, 6992, 7360, 7948, 8165, 8740, 9935, 10792, 11360, 13064, 13490, 13984, 15896, 16330, 17480, 19870, 21584, 22720, 26128, 26980, 27968, 31027, 31792, 32660, 34960, 37753, 39740, 43168, 45701, 52256, 53960, 62054, 63584, 65320, 69920, 75506, 79480, 86336, 91402, 104512, 107920, 124108, 127168, 130640, 139840, 141077, 151012, 155135, 158960, 182804, 188765, 215840, 228505, 248216, 261280, 282154, 302024, 310270, 317920, 365608, 377530, 431680, 457010, 496432, 522560, 564308, 604048, 620540, 635840, 705385, 731216, 755060, 868319, 914020, 992864, 1128616, 1208096, 1241080, 1410770, 1462432, 1510120, 1736638, 1828040, 1985728, 2257232, 2416192, 2482160, 2680463, 2821540, 2924864, 3020240, 3244771, 3473276, 3656080, 4341595, 4514464, 4964320, 5360926, 5643080, 6040480, 6489542, 6946552, 7312160, 8683190, 9028928, 9928640, 10721852, 11286160, 12080960, 12979084, 13402315, 13893104, 14624320, 16223855, 17366380, 21443704, 22572320, 25958168, 26804630, 27786208, 32447710, 34732760, 42887408, 45144640, 51916336, 53609260, 55572416, 61650649, 64895420, 69465520, 85774816, 103832672, 107218520, 123301298, 129790840, 138931040, 171549632, 207665344, 214437040, 246602596, 259581680, 277862080, 308253245, 428874080, 493205192, 519163360, 616506490, 857748160, 986410384, 1038326720, 1233012980, 1972820768, 2466025960, 3945641536, 4932051920, 9864103840, 19728207680]

約数ペア:

[(1, 19728207680), (2, 9864103840), (4, 4932051920), (5, 3945641536), (8, 2466025960), (10, 1972820768), (16, 1233012980), (19, 1038326720), (20, 986410384), (23, 857748160), (32, 616506490), (38, 519163360), (40, 493205192), (46, 428874080), (64, 308253245), (71, 277862080), (76, 259581680), (80, 246602596), (92, 214437040), (95, 207665344), (115, 171549632), (142, 138931040), (152, 129790840), (160, 123301298), (184, 107218520), (190, 103832672), (230, 85774816), (284, 69465520), (304, 64895420), (320, 61650649), (355, 55572416), (368, 53609260), (380, 51916336), (437, 45144640), (460, 42887408), (568, 34732760), (608, 32447710), (710, 27786208), (736, 26804630), (760, 25958168), (874, 22572320), (920, 21443704), (1136, 17366380), (1216, 16223855), (1349, 14624320), (1420, 13893104), (1472, 13402315), (1520, 12979084), (1633, 12080960), (1748, 11286160), (1840, 10721852), (1987, 9928640), (2185, 9028928), (2272, 8683190), (2698, 7312160), (2840, 6946552), (3040, 6489542), (3266, 6040480), (3496, 5643080), (3680, 5360926), (3974, 4964320), (4370, 4514464), (4544, 4341595), (5396, 3656080), (5680, 3473276), (6080, 3244771), (6532, 3020240), (6745, 2924864), (6992, 2821540), (7360, 2680463), (7948, 2482160), (8165, 2416192), (8740, 2257232), (9935, 1985728), (10792, 1828040), (11360, 1736638), (13064, 1510120), (13490, 1462432), (13984, 1410770), (15896, 1241080), (16330, 1208096), (17480, 1128616), (19870, 992864), (21584, 914020), (22720, 868319), (26128, 755060), (26980, 731216), (27968, 705385), (31027, 635840), (31792, 620540), (32660, 604048), (34960, 564308), (37753, 522560), (39740, 496432), (43168, 457010), (45701, 431680), (52256, 377530), (53960, 365608), (62054, 317920), (63584, 310270), (65320, 302024), (69920, 282154), (75506, 261280), (79480, 248216), (86336, 228505), (91402, 215840), (104512, 188765), (107920, 182804), (124108, 158960), (127168, 155135), (130640, 151012), (139840, 141077)]