20321450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{21391}}^1$

素因数の和:21422

約数の個数: 24

約数和(自身を含む): 39789120

約数和(自身を除く): 19467670

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 21391, 42782, 106955, 213910, 406429, 534775, 812858, 1069550, 2032145, 4064290, 10160725, 20321450]

約数ペア:

[(1, 20321450), (2, 10160725), (5, 4064290), (10, 2032145), (19, 1069550), (25, 812858), (38, 534775), (50, 406429), (95, 213910), (190, 106955), (475, 42782), (950, 21391)]