19273900

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{1987}}^1$

素因数の和:2098

約数の個数: 36

約数和(自身を含む): 42276808

約数和(自身を除く): 23002908

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 1987, 2425, 3974, 4850, 7948, 9700, 9935, 19870, 39740, 49675, 99350, 192739, 198700, 385478, 770956, 963695, 1927390, 3854780, 4818475, 9636950, 19273900]

約数ペア:

[(1, 19273900), (2, 9636950), (4, 4818475), (5, 3854780), (10, 1927390), (20, 963695), (25, 770956), (50, 385478), (97, 198700), (100, 192739), (194, 99350), (388, 49675), (485, 39740), (970, 19870), (1940, 9935), (1987, 9700), (2425, 7948), (3974, 4850)]