20699240

素因数分解:

$2^3\times 5^1\times {\mathrm{517481}}^1$

素因数の和:517492

約数の個数: 16

約数和(自身を含む): 46573380

約数和(自身を除く): 25874140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 517481, 1034962, 2069924, 2587405, 4139848, 5174810, 10349620, 20699240]

約数ペア:

[(1, 20699240), (2, 10349620), (4, 5174810), (5, 4139848), (8, 2587405), (10, 2069924), (20, 1034962), (40, 517481)]