12621520

素因数分解:

$2^4\times 5^1\times {\mathrm{157769}}^1$

素因数の和:157782

約数の個数: 20

約数和(自身を含む): 29345220

約数和(自身を除く): 16723700

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157769, 315538, 631076, 788845, 1262152, 1577690, 2524304, 3155380, 6310760, 12621520]

約数ペア:

[(1, 12621520), (2, 6310760), (4, 3155380), (5, 2524304), (8, 1577690), (10, 1262152), (16, 788845), (20, 631076), (40, 315538), (80, 157769)]