19946900

素因数分解:

$2^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{1153}}^1$

素因数の和:1340

約数の個数: 36

約数和(自身を含む): 43572732

約数和(自身を除く): 23625832

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 173, 346, 692, 865, 1153, 1730, 2306, 3460, 4325, 4612, 5765, 8650, 11530, 17300, 23060, 28825, 57650, 115300, 199469, 398938, 797876, 997345, 1994690, 3989380, 4986725, 9973450, 19946900]

約数ペア:

[(1, 19946900), (2, 9973450), (4, 4986725), (5, 3989380), (10, 1994690), (20, 997345), (25, 797876), (50, 398938), (100, 199469), (173, 115300), (346, 57650), (692, 28825), (865, 23060), (1153, 17300), (1730, 11530), (2306, 8650), (3460, 5765), (4325, 4612)]