81339904

素因数分解:

$2^9\times {\mathrm{158867}}^1$

素因数の和:158885

約数の個数: 20

約数和(自身を含む): 162521964

約数和(自身を除く): 81182060

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 158867, 317734, 635468, 1270936, 2541872, 5083744, 10167488, 20334976, 40669952, 81339904]

約数ペア:

[(1, 81339904), (2, 40669952), (4, 20334976), (8, 10167488), (16, 5083744), (32, 2541872), (64, 1270936), (128, 635468), (256, 317734), (512, 158867)]