81154816

素因数分解:

$2^8\times {\mathrm{317011}}^1$

素因数の和:317027

約数の個数: 18

約数和(自身を含む): 161993132

約数和(自身を除く): 80838316

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 317011, 634022, 1268044, 2536088, 5072176, 10144352, 20288704, 40577408, 81154816]

約数ペア:

[(1, 81154816), (2, 40577408), (4, 20288704), (8, 10144352), (16, 5072176), (32, 2536088), (64, 1268044), (128, 634022), (256, 317011)]