210066920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:344

約数の個数: 128

約数和(自身を含む): 562464000

約数和(自身を除く): 352397080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 61, 70, 98, 122, 140, 196, 244, 245, 251, 280, 305, 343, 392, 427, 488, 490, 502, 610, 686, 854, 980, 1004, 1220, 1255, 1372, 1708, 1715, 1757, 1960, 2008, 2135, 2440, 2510, 2744, 2989, 3416, 3430, 3514, 4270, 5020, 5978, 6860, 7028, 8540, 8785, 10040, 11956, 12299, 13720, 14056, 14945, 15311, 17080, 17570, 20923, 23912, 24598, 29890, 30622, 35140, 41846, 49196, 59780, 61244, 61495, 70280, 76555, 83692, 86093, 98392, 104615, 107177, 119560, 122488, 122990, 153110, 167384, 172186, 209230, 214354, 245980, 306220, 344372, 418460, 428708, 430465, 491960, 535885, 612440, 688744, 750239, 836920, 857416, 860930, 1071770, 1500478, 1721860, 2143540, 3000956, 3443720, 3751195, 4287080, 5251673, 6001912, 7502390, 10503346, 15004780, 21006692, 26258365, 30009560, 42013384, 52516730, 105033460, 210066920]

約数ペア:

[(1, 210066920), (2, 105033460), (4, 52516730), (5, 42013384), (7, 30009560), (8, 26258365), (10, 21006692), (14, 15004780), (20, 10503346), (28, 7502390), (35, 6001912), (40, 5251673), (49, 4287080), (56, 3751195), (61, 3443720), (70, 3000956), (98, 2143540), (122, 1721860), (140, 1500478), (196, 1071770), (244, 860930), (245, 857416), (251, 836920), (280, 750239), (305, 688744), (343, 612440), (392, 535885), (427, 491960), (488, 430465), (490, 428708), (502, 418460), (610, 344372), (686, 306220), (854, 245980), (980, 214354), (1004, 209230), (1220, 172186), (1255, 167384), (1372, 153110), (1708, 122990), (1715, 122488), (1757, 119560), (1960, 107177), (2008, 104615), (2135, 98392), (2440, 86093), (2510, 83692), (2744, 76555), (2989, 70280), (3416, 61495), (3430, 61244), (3514, 59780), (4270, 49196), (5020, 41846), (5978, 35140), (6860, 30622), (7028, 29890), (8540, 24598), (8785, 23912), (10040, 20923), (11956, 17570), (12299, 17080), (13720, 15311), (14056, 14945)]