19720300

素因数分解:

$2^2\times 5^2\times {\mathrm{197203}}^1$

素因数の和:197217

約数の個数: 18

約数和(自身を含む): 42793268

約数和(自身を除く): 23072968

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 197203, 394406, 788812, 986015, 1972030, 3944060, 4930075, 9860150, 19720300]

約数ペア:

[(1, 19720300), (2, 9860150), (4, 4930075), (5, 3944060), (10, 1972030), (20, 986015), (25, 788812), (50, 394406), (100, 197203)]