78005000

素因数分解:

$2^3\times 5^4\times {\mathrm{15601}}^1$

素因数の和:15627

約数の個数: 40

約数和(自身を含む): 182777430

約数和(自身を除く): 104772430

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 15601, 31202, 62404, 78005, 124808, 156010, 312020, 390025, 624040, 780050, 1560100, 1950125, 3120200, 3900250, 7800500, 9750625, 15601000, 19501250, 39002500, 78005000]

約数ペア:

[(1, 78005000), (2, 39002500), (4, 19501250), (5, 15601000), (8, 9750625), (10, 7800500), (20, 3900250), (25, 3120200), (40, 1950125), (50, 1560100), (100, 780050), (125, 624040), (200, 390025), (250, 312020), (500, 156010), (625, 124808), (1000, 78005), (1250, 62404), (2500, 31202), (5000, 15601)]