20128178

素因数分解:

$2^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{2749}}^1$

素因数の和:3281

約数の個数: 16

約数和(自身を含む): 34584000

約数和(自身を除く): 14455822

約数列:

[1, 2, 7, 14, 523, 1046, 2749, 3661, 5498, 7322, 19243, 38486, 1437727, 2875454, 10064089, 20128178]

約数ペア:

[(1, 20128178), (2, 10064089), (7, 2875454), (14, 1437727), (523, 38486), (1046, 19243), (2749, 7322), (3661, 5498)]