219764720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{392437}}^1$

素因数の和:392457

約数の個数: 40

約数和(自身を含む): 583947744

約数和(自身を除く): 364183024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 392437, 784874, 1569748, 1962185, 2747059, 3139496, 3924370, 5494118, 6278992, 7848740, 10988236, 13735295, 15697480, 21976472, 27470590, 31394960, 43952944, 54941180, 109882360, 219764720]

約数ペア:

[(1, 219764720), (2, 109882360), (4, 54941180), (5, 43952944), (7, 31394960), (8, 27470590), (10, 21976472), (14, 15697480), (16, 13735295), (20, 10988236), (28, 7848740), (35, 6278992), (40, 5494118), (56, 3924370), (70, 3139496), (80, 2747059), (112, 1962185), (140, 1569748), (280, 784874), (560, 392437)]