188020940

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{218629}}^1$

素因数の和:218681

約数の個数: 24

約数和(自身を含む): 404028240

約数和(自身を除く): 216007300

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 218629, 437258, 874516, 1093145, 2186290, 4372580, 9401047, 18802094, 37604188, 47005235, 94010470, 188020940]

約数ペア:

[(1, 188020940), (2, 94010470), (4, 47005235), (5, 37604188), (10, 18802094), (20, 9401047), (43, 4372580), (86, 2186290), (172, 1093145), (215, 874516), (430, 437258), (860, 218629)]