18841520

素因数分解:

$2^4\times 5^1\times {\mathrm{235519}}^1$

素因数の和:235532

約数の個数: 20

約数和(自身を含む): 43806720

約数和(自身を除く): 24965200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 235519, 471038, 942076, 1177595, 1884152, 2355190, 3768304, 4710380, 9420760, 18841520]

約数ペア:

[(1, 18841520), (2, 9420760), (4, 4710380), (5, 3768304), (8, 2355190), (10, 1884152), (16, 1177595), (20, 942076), (40, 471038), (80, 235519)]