20339320

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{1103}}^1$

素因数の和:1575

約数の個数: 32

約数和(自身を含む): 45904320

約数和(自身を除く): 25565000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1103, 1844, 2206, 2305, 3688, 4412, 4610, 5515, 8824, 9220, 11030, 18440, 22060, 44120, 508483, 1016966, 2033932, 2542415, 4067864, 5084830, 10169660, 20339320]

約数ペア:

[(1, 20339320), (2, 10169660), (4, 5084830), (5, 4067864), (8, 2542415), (10, 2033932), (20, 1016966), (40, 508483), (461, 44120), (922, 22060), (1103, 18440), (1844, 11030), (2206, 9220), (2305, 8824), (3688, 5515), (4412, 4610)]