28736656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{138157}}^1$

素因数の和:138178

約数の個数: 20

約数和(自身を含む): 59960572

約数和(自身を除く): 31223916

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 138157, 276314, 552628, 1105256, 1796041, 2210512, 3592082, 7184164, 14368328, 28736656]

約数ペア:

[(1, 28736656), (2, 14368328), (4, 7184164), (8, 3592082), (13, 2210512), (16, 1796041), (26, 1105256), (52, 552628), (104, 276314), (208, 138157)]