19492660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{353}}^1$

素因数の和:624

約数の個数: 48

約数和(自身を含む): 44960832

約数和(自身を除く): 25468172

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 251, 353, 502, 706, 1004, 1255, 1412, 1765, 2510, 2761, 3530, 3883, 5020, 5522, 7060, 7766, 11044, 13805, 15532, 19415, 27610, 38830, 55220, 77660, 88603, 177206, 354412, 443015, 886030, 974633, 1772060, 1949266, 3898532, 4873165, 9746330, 19492660]

約数ペア:

[(1, 19492660), (2, 9746330), (4, 4873165), (5, 3898532), (10, 1949266), (11, 1772060), (20, 974633), (22, 886030), (44, 443015), (55, 354412), (110, 177206), (220, 88603), (251, 77660), (353, 55220), (502, 38830), (706, 27610), (1004, 19415), (1255, 15532), (1412, 13805), (1765, 11044), (2510, 7766), (2761, 7060), (3530, 5522), (3883, 5020)]