1278608

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{509}}^1$

素因数の和:674

約数の個数: 20

約数和(自身を含む): 2497980

約数和(自身を除く): 1219372

約数列:

[1, 2, 4, 8, 16, 157, 314, 509, 628, 1018, 1256, 2036, 2512, 4072, 8144, 79913, 159826, 319652, 639304, 1278608]

約数ペア:

[(1, 1278608), (2, 639304), (4, 319652), (8, 159826), (16, 79913), (157, 8144), (314, 4072), (509, 2512), (628, 2036), (1018, 1256)]