279820004

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{641789}}^1$

素因数の和:641902

約数の個数: 12

約数和(自身を含む): 494178300

約数和(自身を除く): 214358296

約数列:

[1, 2, 4, 109, 218, 436, 641789, 1283578, 2567156, 69955001, 139910002, 279820004]

約数ペア:

[(1, 279820004), (2, 139910002), (4, 69955001), (109, 2567156), (218, 1283578), (436, 641789)]