71406280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{162287}}^1$

素因数の和:162309

約数の個数: 32

約数和(自身を含む): 175271040

約数和(自身を除く): 103864760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 162287, 324574, 649148, 811435, 1298296, 1622870, 1785157, 3245740, 3570314, 6491480, 7140628, 8925785, 14281256, 17851570, 35703140, 71406280]

約数ペア:

[(1, 71406280), (2, 35703140), (4, 17851570), (5, 14281256), (8, 8925785), (10, 7140628), (11, 6491480), (20, 3570314), (22, 3245740), (40, 1785157), (44, 1622870), (55, 1298296), (88, 811435), (110, 649148), (220, 324574), (440, 162287)]