81285652

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1\times {\mathrm{373}}^1$

素因数の和:608

約数の個数: 48

約数和(自身を含む): 167719552

約数和(自身を除く): 86433900

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 172, 181, 301, 362, 373, 602, 724, 746, 1204, 1267, 1492, 2534, 2611, 5068, 5222, 7783, 10444, 15566, 16039, 31132, 32078, 54481, 64156, 67513, 108962, 112273, 135026, 217924, 224546, 270052, 449092, 472591, 945182, 1890364, 2903059, 5806118, 11612236, 20321413, 40642826, 81285652]

約数ペア:

[(1, 81285652), (2, 40642826), (4, 20321413), (7, 11612236), (14, 5806118), (28, 2903059), (43, 1890364), (86, 945182), (172, 472591), (181, 449092), (301, 270052), (362, 224546), (373, 217924), (602, 135026), (724, 112273), (746, 108962), (1204, 67513), (1267, 64156), (1492, 54481), (2534, 32078), (2611, 31132), (5068, 16039), (5222, 15566), (7783, 10444)]