19720832

素因数分解:

$2^7\times {\mathrm{43}}^1\times {\mathrm{3583}}^1$

素因数の和:3640

約数の個数: 32

約数和(自身を含む): 40212480

約数和(自身を除く): 20491648

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 344, 688, 1376, 2752, 3583, 5504, 7166, 14332, 28664, 57328, 114656, 154069, 229312, 308138, 458624, 616276, 1232552, 2465104, 4930208, 9860416, 19720832]

約数ペア:

[(1, 19720832), (2, 9860416), (4, 4930208), (8, 2465104), (16, 1232552), (32, 616276), (43, 458624), (64, 308138), (86, 229312), (128, 154069), (172, 114656), (344, 57328), (688, 28664), (1376, 14332), (2752, 7166), (3583, 5504)]