19705100

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1951}}^1$

素因数の和:2066

約数の個数: 36

約数和(自身を含む): 43205568

約数和(自身を除く): 23500468

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 1951, 2020, 2525, 3902, 5050, 7804, 9755, 10100, 19510, 39020, 48775, 97550, 195100, 197051, 394102, 788204, 985255, 1970510, 3941020, 4926275, 9852550, 19705100]

約数ペア:

[(1, 19705100), (2, 9852550), (4, 4926275), (5, 3941020), (10, 1970510), (20, 985255), (25, 788204), (50, 394102), (100, 197051), (101, 195100), (202, 97550), (404, 48775), (505, 39020), (1010, 19510), (1951, 10100), (2020, 9755), (2525, 7804), (3902, 5050)]