19578080

素因数分解:

$2^5\times 5^1\times {\mathrm{122363}}^1$

素因数の和:122378

約数の個数: 24

約数和(自身を含む): 46253592

約数和(自身を除く): 26675512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 122363, 244726, 489452, 611815, 978904, 1223630, 1957808, 2447260, 3915616, 4894520, 9789040, 19578080]

約数ペア:

[(1, 19578080), (2, 9789040), (4, 4894520), (5, 3915616), (8, 2447260), (10, 1957808), (16, 1223630), (20, 978904), (32, 611815), (40, 489452), (80, 244726), (160, 122363)]