20652080

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3853}}^1$

素因数の和:3933

約数の個数: 40

約数和(自身を含む): 48745392

約数和(自身を除く): 28093312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3853, 5360, 7706, 15412, 19265, 30824, 38530, 61648, 77060, 154120, 258151, 308240, 516302, 1032604, 1290755, 2065208, 2581510, 4130416, 5163020, 10326040, 20652080]

約数ペア:

[(1, 20652080), (2, 10326040), (4, 5163020), (5, 4130416), (8, 2581510), (10, 2065208), (16, 1290755), (20, 1032604), (40, 516302), (67, 308240), (80, 258151), (134, 154120), (268, 77060), (335, 61648), (536, 38530), (670, 30824), (1072, 19265), (1340, 15412), (2680, 7706), (3853, 5360)]