199900900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{105211}}^1$

素因数の和:105244

約数の個数: 36

約数和(自身を含む): 456620080

約数和(自身を除く): 256719180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 105211, 210422, 420844, 526055, 1052110, 1999009, 2104220, 2630275, 3998018, 5260550, 7996036, 9995045, 10521100, 19990090, 39980180, 49975225, 99950450, 199900900]

約数ペア:

[(1, 199900900), (2, 99950450), (4, 49975225), (5, 39980180), (10, 19990090), (19, 10521100), (20, 9995045), (25, 7996036), (38, 5260550), (50, 3998018), (76, 2630275), (95, 2104220), (100, 1999009), (190, 1052110), (380, 526055), (475, 420844), (950, 210422), (1900, 105211)]