80542900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{42391}}^1$

素因数の和:42424

約数の個数: 36

約数和(自身を含む): 183981280

約数和(自身を除く): 103438380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 42391, 84782, 169564, 211955, 423910, 805429, 847820, 1059775, 1610858, 2119550, 3221716, 4027145, 4239100, 8054290, 16108580, 20135725, 40271450, 80542900]

約数ペア:

[(1, 80542900), (2, 40271450), (4, 20135725), (5, 16108580), (10, 8054290), (19, 4239100), (20, 4027145), (25, 3221716), (38, 2119550), (50, 1610858), (76, 1059775), (95, 847820), (100, 805429), (190, 423910), (380, 211955), (475, 169564), (950, 84782), (1900, 42391)]