12805900

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{1621}}^1$

素因数の和:1714

約数の個数: 36

約数和(自身を含む): 28157920

約数和(自身を除く): 15352020

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 158, 316, 395, 790, 1580, 1621, 1975, 3242, 3950, 6484, 7900, 8105, 16210, 32420, 40525, 81050, 128059, 162100, 256118, 512236, 640295, 1280590, 2561180, 3201475, 6402950, 12805900]

約数ペア:

[(1, 12805900), (2, 6402950), (4, 3201475), (5, 2561180), (10, 1280590), (20, 640295), (25, 512236), (50, 256118), (79, 162100), (100, 128059), (158, 81050), (316, 40525), (395, 32420), (790, 16210), (1580, 8105), (1621, 7900), (1975, 6484), (3242, 3950)]