19784870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1579}}^1$

素因数の和:1772

約数の個数: 32

約数和(自身を含む): 40953600

約数和(自身を除く): 21168730

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 179, 358, 895, 1253, 1579, 1790, 2506, 3158, 6265, 7895, 11053, 12530, 15790, 22106, 55265, 110530, 282641, 565282, 1413205, 1978487, 2826410, 3956974, 9892435, 19784870]

約数ペア:

[(1, 19784870), (2, 9892435), (5, 3956974), (7, 2826410), (10, 1978487), (14, 1413205), (35, 565282), (70, 282641), (179, 110530), (358, 55265), (895, 22106), (1253, 15790), (1579, 12530), (1790, 11053), (2506, 7895), (3158, 6265)]