81019568

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{16823}}^1$

素因数の和:16881

約数の個数: 40

約数和(自身を含む): 183583488

約数和(自身を除く): 102563920

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4816, 16823, 33646, 67292, 117761, 134584, 235522, 269168, 471044, 723389, 942088, 1446778, 1884176, 2893556, 5063723, 5787112, 10127446, 11574224, 20254892, 40509784, 81019568]

約数ペア:

[(1, 81019568), (2, 40509784), (4, 20254892), (7, 11574224), (8, 10127446), (14, 5787112), (16, 5063723), (28, 2893556), (43, 1884176), (56, 1446778), (86, 942088), (112, 723389), (172, 471044), (301, 269168), (344, 235522), (602, 134584), (688, 117761), (1204, 67292), (2408, 33646), (4816, 16823)]