20409988

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 36590400

約数和(自身を除く): 16180412

約数列:

[1, 2, 4, 59, 118, 197, 236, 394, 439, 788, 878, 1756, 11623, 23246, 25901, 46492, 51802, 86483, 103604, 172966, 345932, 5102497, 10204994, 20409988]

約数ペア:

[(1, 20409988), (2, 10204994), (4, 5102497), (59, 345932), (118, 172966), (197, 103604), (236, 86483), (394, 51802), (439, 46492), (788, 25901), (878, 23246), (1756, 11623)]