212800240

素因数分解:

$2^4\times 5^1\times {\mathrm{2660003}}^1$

素因数の和:2660016

約数の個数: 20

約数和(自身を含む): 494760744

約数和(自身を除く): 281960504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2660003, 5320006, 10640012, 13300015, 21280024, 26600030, 42560048, 53200060, 106400120, 212800240]

約数ペア:

[(1, 212800240), (2, 106400120), (4, 53200060), (5, 42560048), (8, 26600030), (10, 21280024), (16, 13300015), (20, 10640012), (40, 5320006), (80, 2660003)]