20213171680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{7793}}^1$

素因数の和:7893

約数の個数: 192

約数和(自身を含む): 54444519360

約数和(自身を除く): 34231347680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 29, 32, 40, 43, 52, 58, 65, 80, 86, 104, 116, 130, 145, 160, 172, 208, 215, 232, 260, 290, 344, 377, 416, 430, 464, 520, 559, 580, 688, 754, 860, 928, 1040, 1118, 1160, 1247, 1376, 1508, 1720, 1885, 2080, 2236, 2320, 2494, 2795, 3016, 3440, 3770, 4472, 4640, 4988, 5590, 6032, 6235, 6880, 7540, 7793, 8944, 9976, 11180, 12064, 12470, 15080, 15586, 16211, 17888, 19952, 22360, 24940, 30160, 31172, 32422, 38965, 39904, 44720, 49880, 60320, 62344, 64844, 77930, 81055, 89440, 99760, 101309, 124688, 129688, 155860, 162110, 199520, 202618, 225997, 249376, 259376, 311720, 324220, 335099, 405236, 451994, 506545, 518752, 623440, 648440, 670198, 810472, 903988, 1013090, 1129985, 1246880, 1296880, 1340396, 1620944, 1675495, 1807976, 2026180, 2259970, 2593760, 2680792, 2937961, 3241888, 3350990, 3615952, 4052360, 4356287, 4519940, 5361584, 5875922, 6701980, 7231904, 8104720, 8712574, 9039880, 9717871, 10723168, 11751844, 13403960, 14689805, 16209440, 17425148, 18079760, 19435742, 21781435, 23503688, 26807920, 29379610, 34850296, 36159520, 38871484, 43562870, 47007376, 48589355, 53615840, 58759220, 69700592, 77742968, 87125740, 94014752, 97178710, 117518440, 126332323, 139401184, 155485936, 174251480, 194357420, 235036880, 252664646, 310971872, 348502960, 388714840, 470073760, 505329292, 631661615, 697005920, 777429680, 1010658584, 1263323230, 1554859360, 2021317168, 2526646460, 4042634336, 5053292920, 10106585840, 20213171680]

約数ペア:

[(1, 20213171680), (2, 10106585840), (4, 5053292920), (5, 4042634336), (8, 2526646460), (10, 2021317168), (13, 1554859360), (16, 1263323230), (20, 1010658584), (26, 777429680), (29, 697005920), (32, 631661615), (40, 505329292), (43, 470073760), (52, 388714840), (58, 348502960), (65, 310971872), (80, 252664646), (86, 235036880), (104, 194357420), (116, 174251480), (130, 155485936), (145, 139401184), (160, 126332323), (172, 117518440), (208, 97178710), (215, 94014752), (232, 87125740), (260, 77742968), (290, 69700592), (344, 58759220), (377, 53615840), (416, 48589355), (430, 47007376), (464, 43562870), (520, 38871484), (559, 36159520), (580, 34850296), (688, 29379610), (754, 26807920), (860, 23503688), (928, 21781435), (1040, 19435742), (1118, 18079760), (1160, 17425148), (1247, 16209440), (1376, 14689805), (1508, 13403960), (1720, 11751844), (1885, 10723168), (2080, 9717871), (2236, 9039880), (2320, 8712574), (2494, 8104720), (2795, 7231904), (3016, 6701980), (3440, 5875922), (3770, 5361584), (4472, 4519940), (4640, 4356287), (4988, 4052360), (5590, 3615952), (6032, 3350990), (6235, 3241888), (6880, 2937961), (7540, 2680792), (7793, 2593760), (8944, 2259970), (9976, 2026180), (11180, 1807976), (12064, 1675495), (12470, 1620944), (15080, 1340396), (15586, 1296880), (16211, 1246880), (17888, 1129985), (19952, 1013090), (22360, 903988), (24940, 810472), (30160, 670198), (31172, 648440), (32422, 623440), (38965, 518752), (39904, 506545), (44720, 451994), (49880, 405236), (60320, 335099), (62344, 324220), (64844, 311720), (77930, 259376), (81055, 249376), (89440, 225997), (99760, 202618), (101309, 199520), (124688, 162110), (129688, 155860)]