81267688

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{3761}}^1$

素因数の和:3877

約数の個数: 32

約数和(自身を含む): 158681160

約数和(自身を除く): 77413472

約数列:

[1, 2, 4, 8, 37, 73, 74, 146, 148, 292, 296, 584, 2701, 3761, 5402, 7522, 10804, 15044, 21608, 30088, 139157, 274553, 278314, 549106, 556628, 1098212, 1113256, 2196424, 10158461, 20316922, 40633844, 81267688]

約数ペア:

[(1, 81267688), (2, 40633844), (4, 20316922), (8, 10158461), (37, 2196424), (73, 1113256), (74, 1098212), (146, 556628), (148, 549106), (292, 278314), (296, 274553), (584, 139157), (2701, 30088), (3761, 21608), (5402, 15044), (7522, 10804)]