81374956

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1201}}^1\times {\mathrm{1303}}^1$

素因数の和:2521

約数の個数: 24

約数和(自身を含む): 153605984

約数和(自身を除く): 72231028

約数列:

[1, 2, 4, 13, 26, 52, 1201, 1303, 2402, 2606, 4804, 5212, 15613, 16939, 31226, 33878, 62452, 67756, 1564903, 3129806, 6259612, 20343739, 40687478, 81374956]

約数ペア:

[(1, 81374956), (2, 40687478), (4, 20343739), (13, 6259612), (26, 3129806), (52, 1564903), (1201, 67756), (1303, 62452), (2402, 33878), (2606, 31226), (4804, 16939), (5212, 15613)]