19930280

素因数分解:

$2^3\times 5^1\times {\mathrm{498257}}^1$

素因数の和:498268

約数の個数: 16

約数和(自身を含む): 44843220

約数和(自身を除く): 24912940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498257, 996514, 1993028, 2491285, 3986056, 4982570, 9965140, 19930280]

約数ペア:

[(1, 19930280), (2, 9965140), (4, 4982570), (5, 3986056), (8, 2491285), (10, 1993028), (20, 996514), (40, 498257)]