1289343728

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1965463}}^1$

素因数の和:1965512

約数の個数: 20

約数和(自身を含む): 2559034128

約数和(自身を除く): 1269690400

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1965463, 3930926, 7861852, 15723704, 31447408, 80583983, 161167966, 322335932, 644671864, 1289343728]

約数ペア:

[(1, 1289343728), (2, 644671864), (4, 322335932), (8, 161167966), (16, 80583983), (41, 31447408), (82, 15723704), (164, 7861852), (328, 3930926), (656, 1965463)]