20658840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172157}}^1$

素因数の和:172171

約数の個数: 32

約数和(自身を含む): 61976880

約数和(自身を除く): 41318040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172157, 344314, 516471, 688628, 860785, 1032942, 1377256, 1721570, 2065884, 2582355, 3443140, 4131768, 5164710, 6886280, 10329420, 20658840]

約数ペア:

[(1, 20658840), (2, 10329420), (3, 6886280), (4, 5164710), (5, 4131768), (6, 3443140), (8, 2582355), (10, 2065884), (12, 1721570), (15, 1377256), (20, 1032942), (24, 860785), (30, 688628), (40, 516471), (60, 344314), (120, 172157)]