20286695

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1669}}^1$

素因数の和:1715

約数の個数: 32

約数和(自身を含む): 30300480

約数和(自身を除く): 10013785

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 1669, 2431, 8345, 12155, 18359, 21697, 28373, 91795, 108485, 141865, 238667, 312103, 368849, 1193335, 1560515, 1844245, 4057339, 20286695]

約数ペア:

[(1, 20286695), (5, 4057339), (11, 1844245), (13, 1560515), (17, 1193335), (55, 368849), (65, 312103), (85, 238667), (143, 141865), (187, 108485), (221, 91795), (715, 28373), (935, 21697), (1105, 18359), (1669, 12155), (2431, 8345)]