81443248

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{71693}}^1$

素因数の和:71772

約数の個数: 20

約数和(自身を含む): 160021008

約数和(自身を除く): 78577760

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 71693, 143386, 286772, 573544, 1147088, 5090203, 10180406, 20360812, 40721624, 81443248]

約数ペア:

[(1, 81443248), (2, 40721624), (4, 20360812), (8, 10180406), (16, 5090203), (71, 1147088), (142, 573544), (284, 286772), (568, 143386), (1136, 71693)]