81935152

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393919}}^1$

素因数の和:393940

約数の個数: 20

約数和(自身を含む): 170961280

約数和(自身を除く): 89026128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393919, 787838, 1575676, 3151352, 5120947, 6302704, 10241894, 20483788, 40967576, 81935152]

約数ペア:

[(1, 81935152), (2, 40967576), (4, 20483788), (8, 10241894), (13, 6302704), (16, 5120947), (26, 3151352), (52, 1575676), (104, 787838), (208, 393919)]