15697420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 35128800

約数和(自身を除く): 19431380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 101, 190, 202, 380, 404, 409, 505, 818, 1010, 1636, 1919, 2020, 2045, 3838, 4090, 7676, 7771, 8180, 9595, 15542, 19190, 31084, 38380, 38855, 41309, 77710, 82618, 155420, 165236, 206545, 413090, 784871, 826180, 1569742, 3139484, 3924355, 7848710, 15697420]

約数ペア:

[(1, 15697420), (2, 7848710), (4, 3924355), (5, 3139484), (10, 1569742), (19, 826180), (20, 784871), (38, 413090), (76, 206545), (95, 165236), (101, 155420), (190, 82618), (202, 77710), (380, 41309), (404, 38855), (409, 38380), (505, 31084), (818, 19190), (1010, 15542), (1636, 9595), (1919, 8180), (2020, 7771), (2045, 7676), (3838, 4090)]