81002690

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^2\times {\mathrm{8429}}^1$

素因数の和:8498

約数の個数: 24

約数和(自身を含む): 150677820

約数和(自身を除く): 69675130

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 961, 1922, 4805, 8429, 9610, 16858, 42145, 84290, 261299, 522598, 1306495, 2612990, 8100269, 16200538, 40501345, 81002690]

約数ペア:

[(1, 81002690), (2, 40501345), (5, 16200538), (10, 8100269), (31, 2612990), (62, 1306495), (155, 522598), (310, 261299), (961, 84290), (1922, 42145), (4805, 16858), (8429, 9610)]