20218179905

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{219727}}^1$

素因数の和:219989

約数の個数: 32

約数和(自身を含む): 30375198720

約数和(自身を除く): 10157018815

約数列:

[1, 5, 7, 11, 35, 55, 77, 239, 385, 1195, 1673, 2629, 8365, 13145, 18403, 92015, 219727, 1098635, 1538089, 2416997, 7690445, 12084985, 16918979, 52514753, 84594895, 262573765, 367603271, 577662283, 1838016355, 2888311415, 4043635981, 20218179905]

約数ペア:

[(1, 20218179905), (5, 4043635981), (7, 2888311415), (11, 1838016355), (35, 577662283), (55, 367603271), (77, 262573765), (239, 84594895), (385, 52514753), (1195, 16918979), (1673, 12084985), (2629, 7690445), (8365, 2416997), (13145, 1538089), (18403, 1098635), (92015, 219727)]