66408140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{34231}}^1$

素因数の和:34337

約数の個数: 24

約数和(自身を含む): 140898912

約数和(自身を除く): 74490772

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 34231, 68462, 136924, 171155, 342310, 684620, 3320407, 6640814, 13281628, 16602035, 33204070, 66408140]

約数ペア:

[(1, 66408140), (2, 33204070), (4, 16602035), (5, 13281628), (10, 6640814), (20, 3320407), (97, 684620), (194, 342310), (388, 171155), (485, 136924), (970, 68462), (1940, 34231)]