338978888

素因数分解:

$2^3\times {\mathrm{79}}^1\times {\mathrm{257}}^1\times {\mathrm{2087}}^1$

素因数の和:2429

約数の個数: 32

約数和(自身を含む): 646444800

約数和(自身を除く): 307465912

約数列:

[1, 2, 4, 8, 79, 158, 257, 316, 514, 632, 1028, 2056, 2087, 4174, 8348, 16696, 20303, 40606, 81212, 162424, 164873, 329746, 536359, 659492, 1072718, 1318984, 2145436, 4290872, 42372361, 84744722, 169489444, 338978888]

約数ペア:

[(1, 338978888), (2, 169489444), (4, 84744722), (8, 42372361), (79, 4290872), (158, 2145436), (257, 1318984), (316, 1072718), (514, 659492), (632, 536359), (1028, 329746), (2056, 164873), (2087, 162424), (4174, 81212), (8348, 40606), (16696, 20303)]