397008980

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{4337}}^1$

素因数の和:4568

約数の個数: 48

約数和(自身を含む): 874540800

約数和(自身を除く): 477531820

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 199, 230, 398, 460, 796, 995, 1990, 3980, 4337, 4577, 8674, 9154, 17348, 18308, 21685, 22885, 43370, 45770, 86740, 91540, 99751, 199502, 399004, 498755, 863063, 997510, 1726126, 1995020, 3452252, 4315315, 8630630, 17261260, 19850449, 39700898, 79401796, 99252245, 198504490, 397008980]

約数ペア:

[(1, 397008980), (2, 198504490), (4, 99252245), (5, 79401796), (10, 39700898), (20, 19850449), (23, 17261260), (46, 8630630), (92, 4315315), (115, 3452252), (199, 1995020), (230, 1726126), (398, 997510), (460, 863063), (796, 498755), (995, 399004), (1990, 199502), (3980, 99751), (4337, 91540), (4577, 86740), (8674, 45770), (9154, 43370), (17348, 22885), (18308, 21685)]