19601900

素因数分解:

$2^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{929}}^1$

素因数の和:1154

約数の個数: 36

約数和(自身を含む): 42783720

約数和(自身を除く): 23181820

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211, 422, 844, 929, 1055, 1858, 2110, 3716, 4220, 4645, 5275, 9290, 10550, 18580, 21100, 23225, 46450, 92900, 196019, 392038, 784076, 980095, 1960190, 3920380, 4900475, 9800950, 19601900]

約数ペア:

[(1, 19601900), (2, 9800950), (4, 4900475), (5, 3920380), (10, 1960190), (20, 980095), (25, 784076), (50, 392038), (100, 196019), (211, 92900), (422, 46450), (844, 23225), (929, 21100), (1055, 18580), (1858, 10550), (2110, 9290), (3716, 5275), (4220, 4645)]