647712004

素因数分解:

$2^2\times {\mathrm{2621}}^1\times {\mathrm{61781}}^1$

素因数の和:64406

約数の個数: 12

約数和(自身を含む): 1133946828

約数和(自身を除く): 486234824

約数列:

[1, 2, 4, 2621, 5242, 10484, 61781, 123562, 247124, 161928001, 323856002, 647712004]

約数ペア:

[(1, 647712004), (2, 323856002), (4, 161928001), (2621, 247124), (5242, 123562), (10484, 61781)]