2008194680908

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{643}}^1\times {\mathrm{551017}}^1$

素因数の和:551786

約数の個数: 48

約数和(自身を含む): 3825343281760

約数和(自身を除く): 1817148600852

約数列:

[1, 2, 4, 13, 26, 52, 109, 218, 436, 643, 1286, 1417, 2572, 2834, 5668, 8359, 16718, 33436, 70087, 140174, 280348, 551017, 911131, 1102034, 1822262, 2204068, 3644524, 7163221, 14326442, 28652884, 60060853, 120121706, 240243412, 354303931, 708607862, 780791089, 1417215724, 1561582178, 3123164356, 4605951103, 9211902206, 18423804412, 38619128479, 77238256958, 154476513916, 502048670227, 1004097340454, 2008194680908]

約数ペア:

[(1, 2008194680908), (2, 1004097340454), (4, 502048670227), (13, 154476513916), (26, 77238256958), (52, 38619128479), (109, 18423804412), (218, 9211902206), (436, 4605951103), (643, 3123164356), (1286, 1561582178), (1417, 1417215724), (2572, 780791089), (2834, 708607862), (5668, 354303931), (8359, 240243412), (16718, 120121706), (33436, 60060853), (70087, 28652884), (140174, 14326442), (280348, 7163221), (551017, 3644524), (911131, 2204068), (1102034, 1822262)]