6639745

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:721

約数の個数: 24

約数和(自身を含む): 9508968

約数和(自身を除く): 2869223

約数列:

[1, 5, 7, 35, 41, 49, 205, 245, 287, 661, 1435, 2009, 3305, 4627, 10045, 23135, 27101, 32389, 135505, 161945, 189707, 948535, 1327949, 6639745]

約数ペア:

[(1, 6639745), (5, 1327949), (7, 948535), (35, 189707), (41, 161945), (49, 135505), (205, 32389), (245, 27101), (287, 23135), (661, 10045), (1435, 4627), (2009, 3305)]