17978950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:457

約数の個数: 48

約数和(自身を含む): 36966384

約数和(自身を除く): 18987434

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 97, 110, 194, 275, 337, 485, 550, 674, 970, 1067, 1685, 2134, 2425, 3370, 3707, 4850, 5335, 7414, 8425, 10670, 16850, 18535, 26675, 32689, 37070, 53350, 65378, 92675, 163445, 185350, 326890, 359579, 719158, 817225, 1634450, 1797895, 3595790, 8989475, 17978950]

約数ペア:

[(1, 17978950), (2, 8989475), (5, 3595790), (10, 1797895), (11, 1634450), (22, 817225), (25, 719158), (50, 359579), (55, 326890), (97, 185350), (110, 163445), (194, 92675), (275, 65378), (337, 53350), (485, 37070), (550, 32689), (674, 26675), (970, 18535), (1067, 16850), (1685, 10670), (2134, 8425), (2425, 7414), (3370, 5335), (3707, 4850)]