788961520

素因数分解:

$2^4\times 5^1\times {\mathrm{9862019}}^1$

素因数の和:9862032

約数の個数: 20

約数和(自身を含む): 1834335720

約数和(自身を除く): 1045374200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9862019, 19724038, 39448076, 49310095, 78896152, 98620190, 157792304, 197240380, 394480760, 788961520]

約数ペア:

[(1, 788961520), (2, 394480760), (4, 197240380), (5, 157792304), (8, 98620190), (10, 78896152), (16, 49310095), (20, 39448076), (40, 19724038), (80, 9862019)]