188020220

素因数分解:

$2^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{42157}}^1$

素因数の和:42389

約数の個数: 24

約数和(自身を含む): 396622464

約数和(自身を除く): 208602244

約数列:

[1, 2, 4, 5, 10, 20, 223, 446, 892, 1115, 2230, 4460, 42157, 84314, 168628, 210785, 421570, 843140, 9401011, 18802022, 37604044, 47005055, 94010110, 188020220]

約数ペア:

[(1, 188020220), (2, 94010110), (4, 47005055), (5, 37604044), (10, 18802022), (20, 9401011), (223, 843140), (446, 421570), (892, 210785), (1115, 168628), (2230, 84314), (4460, 42157)]