27964280

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4289}}^1$

素因数の和:4463

約数の個数: 32

約数和(自身を含む): 63320400

約数和(自身を除く): 35356120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 4289, 6520, 8578, 17156, 21445, 34312, 42890, 85780, 171560, 699107, 1398214, 2796428, 3495535, 5592856, 6991070, 13982140, 27964280]

約数ペア:

[(1, 27964280), (2, 13982140), (4, 6991070), (5, 5592856), (8, 3495535), (10, 2796428), (20, 1398214), (40, 699107), (163, 171560), (326, 85780), (652, 42890), (815, 34312), (1304, 21445), (1630, 17156), (3260, 8578), (4289, 6520)]