20198656

素因数分解:

$2^8\times {\mathrm{78901}}^1$

素因数の和:78917

約数の個数: 18

約数和(自身を含む): 40318922

約数和(自身を除く): 20120266

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78901, 157802, 315604, 631208, 1262416, 2524832, 5049664, 10099328, 20198656]

約数ペア:

[(1, 20198656), (2, 10099328), (4, 5049664), (8, 2524832), (16, 1262416), (32, 631208), (64, 315604), (128, 157802), (256, 78901)]