40121978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{9829}}^1$

素因数の和:10001

約数の個数: 16

約数和(自身を含む): 65231880

約数和(自身を除く): 25109902

約数列:

[1, 2, 13, 26, 157, 314, 2041, 4082, 9829, 19658, 127777, 255554, 1543153, 3086306, 20060989, 40121978]

約数ペア:

[(1, 40121978), (2, 20060989), (13, 3086306), (26, 1543153), (157, 255554), (314, 127777), (2041, 19658), (4082, 9829)]