1919000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 4773600

約数和(自身を除く): 2854600

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 101, 125, 152, 190, 200, 202, 250, 380, 404, 475, 500, 505, 760, 808, 950, 1000, 1010, 1900, 1919, 2020, 2375, 2525, 3800, 3838, 4040, 4750, 5050, 7676, 9500, 9595, 10100, 12625, 15352, 19000, 19190, 20200, 25250, 38380, 47975, 50500, 76760, 95950, 101000, 191900, 239875, 383800, 479750, 959500, 1919000]

約数ペア:

[(1, 1919000), (2, 959500), (4, 479750), (5, 383800), (8, 239875), (10, 191900), (19, 101000), (20, 95950), (25, 76760), (38, 50500), (40, 47975), (50, 38380), (76, 25250), (95, 20200), (100, 19190), (101, 19000), (125, 15352), (152, 12625), (190, 10100), (200, 9595), (202, 9500), (250, 7676), (380, 5050), (404, 4750), (475, 4040), (500, 3838), (505, 3800), (760, 2525), (808, 2375), (950, 2020), (1000, 1919), (1010, 1900)]