19742900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10391}}^1$

素因数の和:10424

約数の個数: 36

約数和(自身を含む): 45101280

約数和(自身を除く): 25358380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 10391, 20782, 41564, 51955, 103910, 197429, 207820, 259775, 394858, 519550, 789716, 987145, 1039100, 1974290, 3948580, 4935725, 9871450, 19742900]

約数ペア:

[(1, 19742900), (2, 9871450), (4, 4935725), (5, 3948580), (10, 1974290), (19, 1039100), (20, 987145), (25, 789716), (38, 519550), (50, 394858), (76, 259775), (95, 207820), (100, 197429), (190, 103910), (380, 51955), (475, 41564), (950, 20782), (1900, 10391)]