78900560

素因数分解:

$2^4\times 5^1\times {\mathrm{986257}}^1$

素因数の和:986270

約数の個数: 20

約数和(自身を含む): 183443988

約数和(自身を除く): 104543428

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 986257, 1972514, 3945028, 4931285, 7890056, 9862570, 15780112, 19725140, 39450280, 78900560]

約数ペア:

[(1, 78900560), (2, 39450280), (4, 19725140), (5, 15780112), (8, 9862570), (10, 7890056), (16, 4931285), (20, 3945028), (40, 1972514), (80, 986257)]