212003005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{479}}^1$

素因数の和:669

約数の個数: 32

約数和(自身を含む): 278691840

約数和(自身を除く): 66688835

約数列:

[1, 5, 17, 41, 85, 127, 205, 479, 635, 697, 2159, 2395, 3485, 5207, 8143, 10795, 19639, 26035, 40715, 60833, 88519, 98195, 304165, 333863, 442595, 1034161, 1669315, 2494153, 5170805, 12470765, 42400601, 212003005]

約数ペア:

[(1, 212003005), (5, 42400601), (17, 12470765), (41, 5170805), (85, 2494153), (127, 1669315), (205, 1034161), (479, 442595), (635, 333863), (697, 304165), (2159, 98195), (2395, 88519), (3485, 60833), (5207, 40715), (8143, 26035), (10795, 19639)]