220278128

素因数分解:

$2^4\times 7^2\times {\mathrm{280967}}^1$

素因数の和:280989

約数の個数: 30

約数和(自身を含む): 496470456

約数和(自身を除く): 276192328

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 280967, 561934, 1123868, 1966769, 2247736, 3933538, 4495472, 7867076, 13767383, 15734152, 27534766, 31468304, 55069532, 110139064, 220278128]

約数ペア:

[(1, 220278128), (2, 110139064), (4, 55069532), (7, 31468304), (8, 27534766), (14, 15734152), (16, 13767383), (28, 7867076), (49, 4495472), (56, 3933538), (98, 2247736), (112, 1966769), (196, 1123868), (392, 561934), (784, 280967)]