389000

素因数分解:

$2^3\times 5^3\times {\mathrm{389}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 912600

約数和(自身を除く): 523600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 389, 500, 778, 1000, 1556, 1945, 3112, 3890, 7780, 9725, 15560, 19450, 38900, 48625, 77800, 97250, 194500, 389000]

約数ペア:

[(1, 389000), (2, 194500), (4, 97250), (5, 77800), (8, 48625), (10, 38900), (20, 19450), (25, 15560), (40, 9725), (50, 7780), (100, 3890), (125, 3112), (200, 1945), (250, 1556), (389, 1000), (500, 778)]