81007264

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{194729}}^1$

素因数の和:194752

約数の個数: 24

約数和(自身を含む): 171751860

約数和(自身を除く): 90744596

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 194729, 389458, 778916, 1557832, 2531477, 3115664, 5062954, 6231328, 10125908, 20251816, 40503632, 81007264]

約数ペア:

[(1, 81007264), (2, 40503632), (4, 20251816), (8, 10125908), (13, 6231328), (16, 5062954), (26, 3115664), (32, 2531477), (52, 1557832), (104, 778916), (208, 389458), (416, 194729)]