81322576

素因数分解:

$2^4\times {\mathrm{181}}^1\times {\mathrm{28081}}^1$

素因数の和:28270

約数の個数: 20

約数和(自身を含む): 158438644

約数和(自身を除く): 77116068

約数列:

[1, 2, 4, 8, 16, 181, 362, 724, 1448, 2896, 28081, 56162, 112324, 224648, 449296, 5082661, 10165322, 20330644, 40661288, 81322576]

約数ペア:

[(1, 81322576), (2, 40661288), (4, 20330644), (8, 10165322), (16, 5082661), (181, 449296), (362, 224648), (724, 112324), (1448, 56162), (2896, 28081)]