290079020

素因数分解:

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

素因数の和:484

約数の個数: 144

約数和(自身を含む): 785998080

約数和(自身を除く): 495919060

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 98, 110, 140, 142, 154, 196, 220, 245, 284, 308, 355, 379, 385, 490, 497, 539, 710, 758, 770, 781, 980, 994, 1078, 1420, 1516, 1540, 1562, 1895, 1988, 2156, 2485, 2653, 2695, 3124, 3479, 3790, 3905, 4169, 4970, 5306, 5390, 5467, 6958, 7580, 7810, 8338, 9940, 10612, 10780, 10934, 13265, 13916, 15620, 16676, 17395, 18571, 20845, 21868, 26530, 26909, 27335, 29183, 34790, 37142, 38269, 41690, 53060, 53818, 54670, 58366, 69580, 74284, 76538, 83380, 92855, 107636, 109340, 116732, 134545, 145915, 153076, 185710, 188363, 191345, 204281, 269090, 291830, 295999, 371420, 376726, 382690, 408562, 538180, 583660, 591998, 753452, 765380, 817124, 941815, 1021405, 1183996, 1318541, 1479995, 1883630, 2042810, 2071993, 2637082, 2959990, 3767260, 4085620, 4143986, 5274164, 5919980, 6592705, 8287972, 10359965, 13185410, 14503951, 20719930, 26370820, 29007902, 41439860, 58015804, 72519755, 145039510, 290079020]

約数ペア:

[(1, 290079020), (2, 145039510), (4, 72519755), (5, 58015804), (7, 41439860), (10, 29007902), (11, 26370820), (14, 20719930), (20, 14503951), (22, 13185410), (28, 10359965), (35, 8287972), (44, 6592705), (49, 5919980), (55, 5274164), (70, 4143986), (71, 4085620), (77, 3767260), (98, 2959990), (110, 2637082), (140, 2071993), (142, 2042810), (154, 1883630), (196, 1479995), (220, 1318541), (245, 1183996), (284, 1021405), (308, 941815), (355, 817124), (379, 765380), (385, 753452), (490, 591998), (497, 583660), (539, 538180), (710, 408562), (758, 382690), (770, 376726), (781, 371420), (980, 295999), (994, 291830), (1078, 269090), (1420, 204281), (1516, 191345), (1540, 188363), (1562, 185710), (1895, 153076), (1988, 145915), (2156, 134545), (2485, 116732), (2653, 109340), (2695, 107636), (3124, 92855), (3479, 83380), (3790, 76538), (3905, 74284), (4169, 69580), (4970, 58366), (5306, 54670), (5390, 53818), (5467, 53060), (6958, 41690), (7580, 38269), (7810, 37142), (8338, 34790), (9940, 29183), (10612, 27335), (10780, 26909), (10934, 26530), (13265, 21868), (13916, 20845), (15620, 18571), (16676, 17395)]