289180136

素因数分解:

$2^3\times 7^1\times {\mathrm{331}}^1\times {\mathrm{15601}}^1$

素因数の和:15945

約数の個数: 32

約数和(自身を含む): 621583680

約数和(自身を除く): 332403544

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 331, 662, 1324, 2317, 2648, 4634, 9268, 15601, 18536, 31202, 62404, 109207, 124808, 218414, 436828, 873656, 5163931, 10327862, 20655724, 36147517, 41311448, 72295034, 144590068, 289180136]

約数ペア:

[(1, 289180136), (2, 144590068), (4, 72295034), (7, 41311448), (8, 36147517), (14, 20655724), (28, 10327862), (56, 5163931), (331, 873656), (662, 436828), (1324, 218414), (2317, 124808), (2648, 109207), (4634, 62404), (9268, 31202), (15601, 18536)]