82879720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{379}}^1$

素因数の和:479

約数の個数: 128

約数和(自身を含む): 236390400

約数和(自身を除く): 153510680

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 71, 77, 88, 110, 140, 142, 154, 220, 280, 284, 308, 355, 379, 385, 440, 497, 568, 616, 710, 758, 770, 781, 994, 1420, 1516, 1540, 1562, 1895, 1988, 2485, 2653, 2840, 3032, 3080, 3124, 3790, 3905, 3976, 4169, 4970, 5306, 5467, 6248, 7580, 7810, 8338, 9940, 10612, 10934, 13265, 15160, 15620, 16676, 19880, 20845, 21224, 21868, 26530, 26909, 27335, 29183, 31240, 33352, 41690, 43736, 53060, 53818, 54670, 58366, 83380, 106120, 107636, 109340, 116732, 134545, 145915, 166760, 188363, 215272, 218680, 233464, 269090, 291830, 295999, 376726, 538180, 583660, 591998, 753452, 941815, 1076360, 1167320, 1183996, 1479995, 1506904, 1883630, 2071993, 2367992, 2959990, 3767260, 4143986, 5919980, 7534520, 8287972, 10359965, 11839960, 16575944, 20719930, 41439860, 82879720]

約数ペア:

[(1, 82879720), (2, 41439860), (4, 20719930), (5, 16575944), (7, 11839960), (8, 10359965), (10, 8287972), (11, 7534520), (14, 5919980), (20, 4143986), (22, 3767260), (28, 2959990), (35, 2367992), (40, 2071993), (44, 1883630), (55, 1506904), (56, 1479995), (70, 1183996), (71, 1167320), (77, 1076360), (88, 941815), (110, 753452), (140, 591998), (142, 583660), (154, 538180), (220, 376726), (280, 295999), (284, 291830), (308, 269090), (355, 233464), (379, 218680), (385, 215272), (440, 188363), (497, 166760), (568, 145915), (616, 134545), (710, 116732), (758, 109340), (770, 107636), (781, 106120), (994, 83380), (1420, 58366), (1516, 54670), (1540, 53818), (1562, 53060), (1895, 43736), (1988, 41690), (2485, 33352), (2653, 31240), (2840, 29183), (3032, 27335), (3080, 26909), (3124, 26530), (3790, 21868), (3905, 21224), (3976, 20845), (4169, 19880), (4970, 16676), (5306, 15620), (5467, 15160), (6248, 13265), (7580, 10934), (7810, 10612), (8338, 9940)]