123663920

素因数分解:

$2^4\times 5^1\times {\mathrm{1545799}}^1$

素因数の和:1545812

約数の個数: 20

約数和(自身を含む): 287518800

約数和(自身を除く): 163854880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1545799, 3091598, 6183196, 7728995, 12366392, 15457990, 24732784, 30915980, 61831960, 123663920]

約数ペア:

[(1, 123663920), (2, 61831960), (4, 30915980), (5, 24732784), (8, 15457990), (10, 12366392), (16, 7728995), (20, 6183196), (40, 3091598), (80, 1545799)]