81921136

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{2339}}^1$

素因数の和:2557

約数の個数: 40

約数和(自身を含む): 174096000

約数和(自身を除く): 92174864

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 199, 398, 796, 1592, 2189, 2339, 3184, 4378, 4678, 8756, 9356, 17512, 18712, 25729, 35024, 37424, 51458, 102916, 205832, 411664, 465461, 930922, 1861844, 3723688, 5120071, 7447376, 10240142, 20480284, 40960568, 81921136]

約数ペア:

[(1, 81921136), (2, 40960568), (4, 20480284), (8, 10240142), (11, 7447376), (16, 5120071), (22, 3723688), (44, 1861844), (88, 930922), (176, 465461), (199, 411664), (398, 205832), (796, 102916), (1592, 51458), (2189, 37424), (2339, 35024), (3184, 25729), (4378, 18712), (4678, 17512), (8756, 9356)]