1379840

素因数分解:

$2^9\times 5^1\times 7^2\times {\mathrm{11}}^1$

素因数の和:48

約数の個数: 120

約数和(自身を含む): 4198392

約数和(自身を除く): 2818552

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 49, 55, 56, 64, 70, 77, 80, 88, 98, 110, 112, 128, 140, 154, 160, 176, 196, 220, 224, 245, 256, 280, 308, 320, 352, 385, 392, 440, 448, 490, 512, 539, 560, 616, 640, 704, 770, 784, 880, 896, 980, 1078, 1120, 1232, 1280, 1408, 1540, 1568, 1760, 1792, 1960, 2156, 2240, 2464, 2560, 2695, 2816, 3080, 3136, 3520, 3584, 3920, 4312, 4480, 4928, 5390, 5632, 6160, 6272, 7040, 7840, 8624, 8960, 9856, 10780, 12320, 12544, 14080, 15680, 17248, 17920, 19712, 21560, 24640, 25088, 28160, 31360, 34496, 39424, 43120, 49280, 62720, 68992, 86240, 98560, 125440, 137984, 172480, 197120, 275968, 344960, 689920, 1379840]

約数ペア:

[(1, 1379840), (2, 689920), (4, 344960), (5, 275968), (7, 197120), (8, 172480), (10, 137984), (11, 125440), (14, 98560), (16, 86240), (20, 68992), (22, 62720), (28, 49280), (32, 43120), (35, 39424), (40, 34496), (44, 31360), (49, 28160), (55, 25088), (56, 24640), (64, 21560), (70, 19712), (77, 17920), (80, 17248), (88, 15680), (98, 14080), (110, 12544), (112, 12320), (128, 10780), (140, 9856), (154, 8960), (160, 8624), (176, 7840), (196, 7040), (220, 6272), (224, 6160), (245, 5632), (256, 5390), (280, 4928), (308, 4480), (320, 4312), (352, 3920), (385, 3584), (392, 3520), (440, 3136), (448, 3080), (490, 2816), (512, 2695), (539, 2560), (560, 2464), (616, 2240), (640, 2156), (704, 1960), (770, 1792), (784, 1760), (880, 1568), (896, 1540), (980, 1408), (1078, 1280), (1120, 1232)]