20616760

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{4817}}^1$

素因数の和:4935

約数の個数: 32

約数和(自身を含む): 46830960

約数和(自身を除く): 26214200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 4817, 9634, 19268, 24085, 38536, 48170, 96340, 192680, 515419, 1030838, 2061676, 2577095, 4123352, 5154190, 10308380, 20616760]

約数ペア:

[(1, 20616760), (2, 10308380), (4, 5154190), (5, 4123352), (8, 2577095), (10, 2061676), (20, 1030838), (40, 515419), (107, 192680), (214, 96340), (428, 48170), (535, 38536), (856, 24085), (1070, 19268), (2140, 9634), (4280, 4817)]