139040368

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{21247}}^1$

素因数の和:21664

約数の個数: 20

約数和(自身を含む): 270062080

約数和(自身を除く): 131021712

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 21247, 42494, 84988, 169976, 339952, 8690023, 17380046, 34760092, 69520184, 139040368]

約数ペア:

[(1, 139040368), (2, 69520184), (4, 34760092), (8, 17380046), (16, 8690023), (409, 339952), (818, 169976), (1636, 84988), (3272, 42494), (6544, 21247)]