20195105

素因数分解:

$5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{2659}}^1$

素因数の和:2709

約数の個数: 24

約数和(自身を含む): 29111040

約数和(自身を除く): 8915935

約数列:

[1, 5, 7, 31, 35, 49, 155, 217, 245, 1085, 1519, 2659, 7595, 13295, 18613, 82429, 93065, 130291, 412145, 577003, 651455, 2885015, 4039021, 20195105]

約数ペア:

[(1, 20195105), (5, 4039021), (7, 2885015), (31, 651455), (35, 577003), (49, 412145), (155, 130291), (217, 93065), (245, 82429), (1085, 18613), (1519, 13295), (2659, 7595)]