638890672

素因数分解:

$2^4\times 7^1\times {\mathrm{1559}}^1\times {\mathrm{3659}}^1$

素因数の和:5233

約数の個数: 40

約数和(自身を含む): 1415980800

約数和(自身を除く): 777090128

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1559, 3118, 3659, 6236, 7318, 10913, 12472, 14636, 21826, 24944, 25613, 29272, 43652, 51226, 58544, 87304, 102452, 174608, 204904, 409808, 5704381, 11408762, 22817524, 39930667, 45635048, 79861334, 91270096, 159722668, 319445336, 638890672]

約数ペア:

[(1, 638890672), (2, 319445336), (4, 159722668), (7, 91270096), (8, 79861334), (14, 45635048), (16, 39930667), (28, 22817524), (56, 11408762), (112, 5704381), (1559, 409808), (3118, 204904), (3659, 174608), (6236, 102452), (7318, 87304), (10913, 58544), (12472, 51226), (14636, 43652), (21826, 29272), (24944, 25613)]