689920

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{11}}^1$

素因数の和:46

約数の個数: 108

約数和(自身を含む): 2097144

約数和(自身を除く): 1407224

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, 539, 560, 616, 640, 704, 770, 784, 880, 896, 980, 1078, 1120, 1232, 1280, 1408, 1540, 1568, 1760, 1792, 1960, 2156, 2240, 2464, 2695, 2816, 3080, 3136, 3520, 3920, 4312, 4480, 4928, 5390, 6160, 6272, 7040, 7840, 8624, 8960, 9856, 10780, 12320, 12544, 14080, 15680, 17248, 19712, 21560, 24640, 31360, 34496, 43120, 49280, 62720, 68992, 86240, 98560, 137984, 172480, 344960, 689920]

約数ペア:

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