220987984

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{41981}}^1$

素因数の和:42043

約数の個数: 40

約数和(自身を含む): 499753728

約数和(自身を除く): 278765744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 5264, 41981, 83962, 167924, 293867, 335848, 587734, 671696, 1175468, 1973107, 2350936, 3946214, 4701872, 7892428, 13811749, 15784856, 27623498, 31569712, 55246996, 110493992, 220987984]

約数ペア:

[(1, 220987984), (2, 110493992), (4, 55246996), (7, 31569712), (8, 27623498), (14, 15784856), (16, 13811749), (28, 7892428), (47, 4701872), (56, 3946214), (94, 2350936), (112, 1973107), (188, 1175468), (329, 671696), (376, 587734), (658, 335848), (752, 293867), (1316, 167924), (2632, 83962), (5264, 41981)]