84142370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{20879}}^1$

素因数の和:20930

約数の個数: 32

約数和(自身を含む): 168376320

約数和(自身を除く): 84233950

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 20879, 41758, 104395, 208790, 271427, 542854, 647249, 1294498, 1357135, 2714270, 3236245, 6472490, 8414237, 16828474, 42071185, 84142370]

約数ペア:

[(1, 84142370), (2, 42071185), (5, 16828474), (10, 8414237), (13, 6472490), (26, 3236245), (31, 2714270), (62, 1357135), (65, 1294498), (130, 647249), (155, 542854), (310, 271427), (403, 208790), (806, 104395), (2015, 41758), (4030, 20879)]