788473820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{198109}}^1$

素因数の和:198317

約数の個数: 24

約数和(自身を含む): 1664124000

約数和(自身を除く): 875650180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 198109, 396218, 792436, 990545, 1981090, 3962180, 39423691, 78847382, 157694764, 197118455, 394236910, 788473820]

約数ペア:

[(1, 788473820), (2, 394236910), (4, 197118455), (5, 157694764), (10, 78847382), (20, 39423691), (199, 3962180), (398, 1981090), (796, 990545), (995, 792436), (1990, 396218), (3980, 198109)]