67720528

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{257}}^1\times {\mathrm{383}}^1$

素因数の和:691

約数の個数: 40

約数和(自身を含む): 135134208

約数和(自身を除く): 67413680

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 257, 344, 383, 514, 688, 766, 1028, 1532, 2056, 3064, 4112, 6128, 11051, 16469, 22102, 32938, 44204, 65876, 88408, 98431, 131752, 176816, 196862, 263504, 393724, 787448, 1574896, 4232533, 8465066, 16930132, 33860264, 67720528]

約数ペア:

[(1, 67720528), (2, 33860264), (4, 16930132), (8, 8465066), (16, 4232533), (43, 1574896), (86, 787448), (172, 393724), (257, 263504), (344, 196862), (383, 176816), (514, 131752), (688, 98431), (766, 88408), (1028, 65876), (1532, 44204), (2056, 32938), (3064, 22102), (4112, 16469), (6128, 11051)]