78403040

素因数分解:

$2^5\times 5^1\times {\mathrm{490019}}^1$

素因数の和:490034

約数の個数: 24

約数和(自身を含む): 185227560

約数和(自身を除く): 106824520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 490019, 980038, 1960076, 2450095, 3920152, 4900190, 7840304, 9800380, 15680608, 19600760, 39201520, 78403040]

約数ペア:

[(1, 78403040), (2, 39201520), (4, 19600760), (5, 15680608), (8, 9800380), (10, 7840304), (16, 4900190), (20, 3920152), (32, 2450095), (40, 1960076), (80, 980038), (160, 490019)]