20656160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18443}}^1$

素因数の和:18465

約数の個数: 48

約数和(自身を含む): 55774656

約数和(自身を除く): 35118496

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18443, 36886, 73772, 92215, 129101, 147544, 184430, 258202, 295088, 368860, 516404, 590176, 645505, 737720, 1032808, 1291010, 1475440, 2065616, 2582020, 2950880, 4131232, 5164040, 10328080, 20656160]

約数ペア:

[(1, 20656160), (2, 10328080), (4, 5164040), (5, 4131232), (7, 2950880), (8, 2582020), (10, 2065616), (14, 1475440), (16, 1291010), (20, 1032808), (28, 737720), (32, 645505), (35, 590176), (40, 516404), (56, 368860), (70, 295088), (80, 258202), (112, 184430), (140, 147544), (160, 129101), (224, 92215), (280, 73772), (560, 36886), (1120, 18443)]