20709130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:922

約数の個数: 32

約数和(自身を含む): 40371408

約数和(自身を除く): 19662278

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 241, 482, 661, 1205, 1322, 2410, 3133, 3305, 6266, 6610, 8593, 15665, 17186, 31330, 42965, 85930, 159301, 318602, 796505, 1593010, 2070913, 4141826, 10354565, 20709130]

約数ペア:

[(1, 20709130), (2, 10354565), (5, 4141826), (10, 2070913), (13, 1593010), (26, 796505), (65, 318602), (130, 159301), (241, 85930), (482, 42965), (661, 31330), (1205, 17186), (1322, 15665), (2410, 8593), (3133, 6610), (3305, 6266)]