18522040

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7591}}^1$

素因数の和:7663

約数の個数: 32

約数和(自身を含む): 42363360

約数和(自身を除く): 23841320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7591, 15182, 30364, 37955, 60728, 75910, 151820, 303640, 463051, 926102, 1852204, 2315255, 3704408, 4630510, 9261020, 18522040]

約数ペア:

[(1, 18522040), (2, 9261020), (4, 4630510), (5, 3704408), (8, 2315255), (10, 1852204), (20, 926102), (40, 463051), (61, 303640), (122, 151820), (244, 75910), (305, 60728), (488, 37955), (610, 30364), (1220, 15182), (2440, 7591)]