9972020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12161}}^1$

素因数の和:12211

約数の個数: 24

約数和(自身を含む): 21453768

約数和(自身を除く): 11481748

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 12161, 24322, 48644, 60805, 121610, 243220, 498601, 997202, 1994404, 2493005, 4986010, 9972020]

約数ペア:

[(1, 9972020), (2, 4986010), (4, 2493005), (5, 1994404), (10, 997202), (20, 498601), (41, 243220), (82, 121610), (164, 60805), (205, 48644), (410, 24322), (820, 12161)]