199492780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{524981}}^1$

素因数の和:525009

約数の個数: 24

約数和(自身を含む): 440984880

約数和(自身を除く): 241492100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 524981, 1049962, 2099924, 2624905, 5249810, 9974639, 10499620, 19949278, 39898556, 49873195, 99746390, 199492780]

約数ペア:

[(1, 199492780), (2, 99746390), (4, 49873195), (5, 39898556), (10, 19949278), (19, 10499620), (20, 9974639), (38, 5249810), (76, 2624905), (95, 2099924), (190, 1049962), (380, 524981)]