38164220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{199}}^1\times {\mathrm{223}}^1$

素因数の和:474

約数の個数: 48

約数和(自身を含む): 82790400

約数和(自身を除く): 44626180

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 199, 215, 223, 398, 430, 446, 796, 860, 892, 995, 1115, 1990, 2230, 3980, 4460, 8557, 9589, 17114, 19178, 34228, 38356, 42785, 44377, 47945, 85570, 88754, 95890, 171140, 177508, 191780, 221885, 443770, 887540, 1908211, 3816422, 7632844, 9541055, 19082110, 38164220]

約数ペア:

[(1, 38164220), (2, 19082110), (4, 9541055), (5, 7632844), (10, 3816422), (20, 1908211), (43, 887540), (86, 443770), (172, 221885), (199, 191780), (215, 177508), (223, 171140), (398, 95890), (430, 88754), (446, 85570), (796, 47945), (860, 44377), (892, 42785), (995, 38356), (1115, 34228), (1990, 19178), (2230, 17114), (3980, 9589), (4460, 8557)]