129467900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{68141}}^1$

素因数の和:68174

約数の個数: 36

約数和(自身を含む): 295736280

約数和(自身を除く): 166268380

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900, 68141, 136282, 272564, 340705, 681410, 1294679, 1362820, 1703525, 2589358, 3407050, 5178716, 6473395, 6814100, 12946790, 25893580, 32366975, 64733950, 129467900]

約数ペア:

[(1, 129467900), (2, 64733950), (4, 32366975), (5, 25893580), (10, 12946790), (19, 6814100), (20, 6473395), (25, 5178716), (38, 3407050), (50, 2589358), (76, 1703525), (95, 1362820), (100, 1294679), (190, 681410), (380, 340705), (475, 272564), (950, 136282), (1900, 68141)]