2139820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1103}}^1$

素因数の和:1209

約数の個数: 24

約数和(自身を含む): 4544064

約数和(自身を除く): 2404244

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1103, 1940, 2206, 4412, 5515, 11030, 22060, 106991, 213982, 427964, 534955, 1069910, 2139820]

約数ペア:

[(1, 2139820), (2, 1069910), (4, 534955), (5, 427964), (10, 213982), (20, 106991), (97, 22060), (194, 11030), (388, 5515), (485, 4412), (970, 2206), (1103, 1940)]