19812580

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1741}}^1$

素因数の和:2319

約数の個数: 24

約数和(自身を含む): 41703480

約数和(自身を除く): 21890900

約数列:

[1, 2, 4, 5, 10, 20, 569, 1138, 1741, 2276, 2845, 3482, 5690, 6964, 8705, 11380, 17410, 34820, 990629, 1981258, 3962516, 4953145, 9906290, 19812580]

約数ペア:

[(1, 19812580), (2, 9906290), (4, 4953145), (5, 3962516), (10, 1981258), (20, 990629), (569, 34820), (1138, 17410), (1741, 11380), (2276, 8705), (2845, 6964), (3482, 5690)]