155600

素因数分解:

$2^4\times 5^2\times {\mathrm{389}}^1$

素因数の和:407

約数の個数: 30

約数和(自身を含む): 374790

約数和(自身を除く): 219190

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 389, 400, 778, 1556, 1945, 3112, 3890, 6224, 7780, 9725, 15560, 19450, 31120, 38900, 77800, 155600]

約数ペア:

[(1, 155600), (2, 77800), (4, 38900), (5, 31120), (8, 19450), (10, 15560), (16, 9725), (20, 7780), (25, 6224), (40, 3890), (50, 3112), (80, 1945), (100, 1556), (200, 778), (389, 400)]