20718840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{172657}}^1$

素因数の和:172671

約数の個数: 32

約数和(自身を含む): 62156880

約数和(自身を除く): 41438040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 172657, 345314, 517971, 690628, 863285, 1035942, 1381256, 1726570, 2071884, 2589855, 3453140, 4143768, 5179710, 6906280, 10359420, 20718840]

約数ペア:

[(1, 20718840), (2, 10359420), (3, 6906280), (4, 5179710), (5, 4143768), (6, 3453140), (8, 2589855), (10, 2071884), (12, 1726570), (15, 1381256), (20, 1035942), (24, 863285), (30, 690628), (40, 517971), (60, 345314), (120, 172657)]