19448500

素因数分解:

$2^2\times 5^3\times {\mathrm{97}}^1\times {\mathrm{401}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 43020432

約数和(自身を除く): 23571932

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 401, 485, 500, 802, 970, 1604, 1940, 2005, 2425, 4010, 4850, 8020, 9700, 10025, 12125, 20050, 24250, 38897, 40100, 48500, 50125, 77794, 100250, 155588, 194485, 200500, 388970, 777940, 972425, 1944850, 3889700, 4862125, 9724250, 19448500]

約数ペア:

[(1, 19448500), (2, 9724250), (4, 4862125), (5, 3889700), (10, 1944850), (20, 972425), (25, 777940), (50, 388970), (97, 200500), (100, 194485), (125, 155588), (194, 100250), (250, 77794), (388, 50125), (401, 48500), (485, 40100), (500, 38897), (802, 24250), (970, 20050), (1604, 12125), (1940, 10025), (2005, 9700), (2425, 8020), (4010, 4850)]