191900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:134

約数の個数: 36

約数和(自身を含む): 442680

約数和(自身を除く): 250780

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 101, 190, 202, 380, 404, 475, 505, 950, 1010, 1900, 1919, 2020, 2525, 3838, 5050, 7676, 9595, 10100, 19190, 38380, 47975, 95950, 191900]

約数ペア:

[(1, 191900), (2, 95950), (4, 47975), (5, 38380), (10, 19190), (19, 10100), (20, 9595), (25, 7676), (38, 5050), (50, 3838), (76, 2525), (95, 2020), (100, 1919), (101, 1900), (190, 1010), (202, 950), (380, 505), (404, 475)]