81397904

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{42751}}^1$

素因数の和:42783

約数の個数: 40

約数和(自身を含む): 190844928

約数和(自身を除く): 109447024

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 42751, 85502, 171004, 299257, 342008, 598514, 684016, 726767, 1197028, 1453534, 2394056, 2907068, 4788112, 5087369, 5814136, 10174738, 11628272, 20349476, 40698952, 81397904]

約数ペア:

[(1, 81397904), (2, 40698952), (4, 20349476), (7, 11628272), (8, 10174738), (14, 5814136), (16, 5087369), (17, 4788112), (28, 2907068), (34, 2394056), (56, 1453534), (68, 1197028), (112, 726767), (119, 684016), (136, 598514), (238, 342008), (272, 299257), (476, 171004), (952, 85502), (1904, 42751)]