81850216

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{39503}}^1$

素因数の和:39553

約数の個数: 32

約数和(自身を含む): 180138240

約数和(自身を除く): 98288024

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 518, 1036, 2072, 39503, 79006, 158012, 276521, 316024, 553042, 1106084, 1461611, 2212168, 2923222, 5846444, 10231277, 11692888, 20462554, 40925108, 81850216]

約数ペア:

[(1, 81850216), (2, 40925108), (4, 20462554), (7, 11692888), (8, 10231277), (14, 5846444), (28, 2923222), (37, 2212168), (56, 1461611), (74, 1106084), (148, 553042), (259, 316024), (296, 276521), (518, 158012), (1036, 79006), (2072, 39503)]