20406950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{21481}}^1$

素因数の和:21512

約数の個数: 24

約数和(自身を含む): 39956520

約数和(自身を除く): 19549570

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 21481, 42962, 107405, 214810, 408139, 537025, 816278, 1074050, 2040695, 4081390, 10203475, 20406950]

約数ペア:

[(1, 20406950), (2, 10203475), (5, 4081390), (10, 2040695), (19, 1074050), (25, 816278), (38, 537025), (50, 408139), (95, 214810), (190, 107405), (475, 42962), (950, 21481)]