8945000

素因数分解:

$2^3\times 5^4\times {\mathrm{1789}}^1$

素因数の和:1815

約数の個数: 40

約数和(自身を含む): 20969850

約数和(自身を除く): 12024850

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 1789, 2500, 3578, 5000, 7156, 8945, 14312, 17890, 35780, 44725, 71560, 89450, 178900, 223625, 357800, 447250, 894500, 1118125, 1789000, 2236250, 4472500, 8945000]

約数ペア:

[(1, 8945000), (2, 4472500), (4, 2236250), (5, 1789000), (8, 1118125), (10, 894500), (20, 447250), (25, 357800), (40, 223625), (50, 178900), (100, 89450), (125, 71560), (200, 44725), (250, 35780), (500, 17890), (625, 14312), (1000, 8945), (1250, 7156), (1789, 5000), (2500, 3578)]