18715696880

素因数分解:

$2^4\times 5^1\times {\mathrm{233946211}}^1$

素因数の和:233946224

約数の個数: 20

約数和(自身を含む): 43513995432

約数和(自身を除く): 24798298552

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 233946211, 467892422, 935784844, 1169731055, 1871569688, 2339462110, 3743139376, 4678924220, 9357848440, 18715696880]

約数ペア:

[(1, 18715696880), (2, 9357848440), (4, 4678924220), (5, 3743139376), (8, 2339462110), (10, 1871569688), (16, 1169731055), (20, 935784844), (40, 467892422), (80, 233946211)]