20122506880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4491631}}^1$

素因数の和:4491657

約数の個数: 64

約数和(自身を含む): 54977575680

約数和(自身を除く): 34855068800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4480, 4491631, 8983262, 17966524, 22458155, 31441417, 35933048, 44916310, 62882834, 71866096, 89832620, 125765668, 143732192, 157207085, 179665240, 251531336, 287464384, 314414170, 359330480, 503062672, 574928768, 628828340, 718660960, 1006125344, 1257656680, 1437321920, 2012250688, 2515313360, 2874643840, 4024501376, 5030626720, 10061253440, 20122506880]

約数ペア:

[(1, 20122506880), (2, 10061253440), (4, 5030626720), (5, 4024501376), (7, 2874643840), (8, 2515313360), (10, 2012250688), (14, 1437321920), (16, 1257656680), (20, 1006125344), (28, 718660960), (32, 628828340), (35, 574928768), (40, 503062672), (56, 359330480), (64, 314414170), (70, 287464384), (80, 251531336), (112, 179665240), (128, 157207085), (140, 143732192), (160, 125765668), (224, 89832620), (280, 71866096), (320, 62882834), (448, 44916310), (560, 35933048), (640, 31441417), (896, 22458155), (1120, 17966524), (2240, 8983262), (4480, 4491631)]