215097500

素因数分解:

$2^2\times 5^4\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1008

約数の個数: 60

約数和(自身を含む): 475760208

約数和(自身を除く): 260662708

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 125, 194, 250, 388, 485, 500, 625, 887, 970, 1250, 1774, 1940, 2425, 2500, 3548, 4435, 4850, 8870, 9700, 12125, 17740, 22175, 24250, 44350, 48500, 60625, 86039, 88700, 110875, 121250, 172078, 221750, 242500, 344156, 430195, 443500, 554375, 860390, 1108750, 1720780, 2150975, 2217500, 4301950, 8603900, 10754875, 21509750, 43019500, 53774375, 107548750, 215097500]

約数ペア:

[(1, 215097500), (2, 107548750), (4, 53774375), (5, 43019500), (10, 21509750), (20, 10754875), (25, 8603900), (50, 4301950), (97, 2217500), (100, 2150975), (125, 1720780), (194, 1108750), (250, 860390), (388, 554375), (485, 443500), (500, 430195), (625, 344156), (887, 242500), (970, 221750), (1250, 172078), (1774, 121250), (1940, 110875), (2425, 88700), (2500, 86039), (3548, 60625), (4435, 48500), (4850, 44350), (8870, 24250), (9700, 22175), (12125, 17740)]