22258520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{12941}}^1$

素因数の和:12995

約数の個数: 32

約数和(自身を含む): 51250320

約数和(自身を除く): 28991800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 12941, 25882, 51764, 64705, 103528, 129410, 258820, 517640, 556463, 1112926, 2225852, 2782315, 4451704, 5564630, 11129260, 22258520]

約数ペア:

[(1, 22258520), (2, 11129260), (4, 5564630), (5, 4451704), (8, 2782315), (10, 2225852), (20, 1112926), (40, 556463), (43, 517640), (86, 258820), (172, 129410), (215, 103528), (344, 64705), (430, 51764), (860, 25882), (1720, 12941)]