64388272

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{309559}}^1$

素因数の和:309580

約数の個数: 20

約数和(自身を含む): 134349040

約数和(自身を除く): 69960768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 309559, 619118, 1238236, 2476472, 4024267, 4952944, 8048534, 16097068, 32194136, 64388272]

約数ペア:

[(1, 64388272), (2, 32194136), (4, 16097068), (8, 8048534), (13, 4952944), (16, 4024267), (26, 2476472), (52, 1238236), (104, 619118), (208, 309559)]