19669660

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10139}}^1$

素因数の和:10245

約数の個数: 24

約数和(自身を含む): 41736240

約数和(自身を除く): 22066580

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10139, 20278, 40556, 50695, 101390, 202780, 983483, 1966966, 3933932, 4917415, 9834830, 19669660]

約数ペア:

[(1, 19669660), (2, 9834830), (4, 4917415), (5, 3933932), (10, 1966966), (20, 983483), (97, 202780), (194, 101390), (388, 50695), (485, 40556), (970, 20278), (1940, 10139)]