20245120

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4519}}^1$

素因数の和:4545

約数の個数: 64

約数和(自身を含む): 55324800

約数和(自身を除く): 35079680

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, 4519, 9038, 18076, 22595, 31633, 36152, 45190, 63266, 72304, 90380, 126532, 144608, 158165, 180760, 253064, 289216, 316330, 361520, 506128, 578432, 632660, 723040, 1012256, 1265320, 1446080, 2024512, 2530640, 2892160, 4049024, 5061280, 10122560, 20245120]

約数ペア:

[(1, 20245120), (2, 10122560), (4, 5061280), (5, 4049024), (7, 2892160), (8, 2530640), (10, 2024512), (14, 1446080), (16, 1265320), (20, 1012256), (28, 723040), (32, 632660), (35, 578432), (40, 506128), (56, 361520), (64, 316330), (70, 289216), (80, 253064), (112, 180760), (128, 158165), (140, 144608), (160, 126532), (224, 90380), (280, 72304), (320, 63266), (448, 45190), (560, 36152), (640, 31633), (896, 22595), (1120, 18076), (2240, 9038), (4480, 4519)]