81239884

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{3167}}^1$

素因数の和:3246

約数の個数: 36

約数和(自身を含む): 159268032

約数和(自身を除く): 78028148

約数列:

[1, 2, 4, 11, 22, 44, 53, 106, 121, 212, 242, 484, 583, 1166, 2332, 3167, 6334, 6413, 12668, 12826, 25652, 34837, 69674, 139348, 167851, 335702, 383207, 671404, 766414, 1532828, 1846361, 3692722, 7385444, 20309971, 40619942, 81239884]

約数ペア:

[(1, 81239884), (2, 40619942), (4, 20309971), (11, 7385444), (22, 3692722), (44, 1846361), (53, 1532828), (106, 766414), (121, 671404), (212, 383207), (242, 335702), (484, 167851), (583, 139348), (1166, 69674), (2332, 34837), (3167, 25652), (6334, 12826), (6413, 12668)]