19705220

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{20963}}^1$

素因数の和:21019

約数の個数: 24

約数和(自身を含む): 42263424

約数和(自身を除く): 22558204

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 20963, 41926, 83852, 104815, 209630, 419260, 985261, 1970522, 3941044, 4926305, 9852610, 19705220]

約数ペア:

[(1, 19705220), (2, 9852610), (4, 4926305), (5, 3941044), (10, 1970522), (20, 985261), (47, 419260), (94, 209630), (188, 104815), (235, 83852), (470, 41926), (940, 20963)]