17897740

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{2609}}^1$

素因数の和:2639

約数の個数: 48

約数和(自身を含む): 43848000

約数和(自身を除く): 25950260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 2609, 3430, 5218, 6860, 10436, 13045, 18263, 26090, 36526, 52180, 73052, 91315, 127841, 182630, 255682, 365260, 511364, 639205, 894887, 1278410, 1789774, 2556820, 3579548, 4474435, 8948870, 17897740]

約数ペア:

[(1, 17897740), (2, 8948870), (4, 4474435), (5, 3579548), (7, 2556820), (10, 1789774), (14, 1278410), (20, 894887), (28, 639205), (35, 511364), (49, 365260), (70, 255682), (98, 182630), (140, 127841), (196, 91315), (245, 73052), (343, 52180), (490, 36526), (686, 26090), (980, 18263), (1372, 13045), (1715, 10436), (2609, 6860), (3430, 5218)]