81873968

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{719}}^1$

素因数の和:1385

約数の個数: 40

約数和(自身を含む): 173560320

約数和(自身を除く): 91686352

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 647, 719, 1294, 1438, 2588, 2876, 5176, 5752, 7117, 7909, 10352, 11504, 14234, 15818, 28468, 31636, 56936, 63272, 113872, 126544, 465193, 930386, 1860772, 3721544, 5117123, 7443088, 10234246, 20468492, 40936984, 81873968]

約数ペア:

[(1, 81873968), (2, 40936984), (4, 20468492), (8, 10234246), (11, 7443088), (16, 5117123), (22, 3721544), (44, 1860772), (88, 930386), (176, 465193), (647, 126544), (719, 113872), (1294, 63272), (1438, 56936), (2588, 31636), (2876, 28468), (5176, 15818), (5752, 14234), (7117, 11504), (7909, 10352)]