12920860

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5927}}^1$

素因数の和:6045

約数の個数: 24

約数和(自身を含む): 27387360

約数和(自身を除く): 14466500

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 5927, 11854, 23708, 29635, 59270, 118540, 646043, 1292086, 2584172, 3230215, 6460430, 12920860]

約数ペア:

[(1, 12920860), (2, 6460430), (4, 3230215), (5, 2584172), (10, 1292086), (20, 646043), (109, 118540), (218, 59270), (436, 29635), (545, 23708), (1090, 11854), (2180, 5927)]