19929620

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10273}}^1$

素因数の和:10379

約数の個数: 24

約数和(自身を含む): 42287784

約数和(自身を除く): 22358164

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10273, 20546, 41092, 51365, 102730, 205460, 996481, 1992962, 3985924, 4982405, 9964810, 19929620]

約数ペア:

[(1, 19929620), (2, 9964810), (4, 4982405), (5, 3985924), (10, 1992962), (20, 996481), (97, 205460), (194, 102730), (388, 51365), (485, 41092), (970, 20546), (1940, 10273)]