15551240

素因数分解:

$2^3\times 5^1\times {\mathrm{388781}}^1$

素因数の和:388792

約数の個数: 16

約数和(自身を含む): 34990380

約数和(自身を除く): 19439140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 388781, 777562, 1555124, 1943905, 3110248, 3887810, 7775620, 15551240]

約数ペア:

[(1, 15551240), (2, 7775620), (4, 3887810), (5, 3110248), (8, 1943905), (10, 1555124), (20, 777562), (40, 388781)]