156728215

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{10487}}^1$

素因数の和:10567

約数の個数: 24

約数和(自身を含む): 222387552

約数和(自身を除く): 65659337

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2135, 2989, 10487, 14945, 52435, 73409, 367045, 513863, 639707, 2569315, 3198535, 4477949, 22389745, 31345643, 156728215]

約数ペア:

[(1, 156728215), (5, 31345643), (7, 22389745), (35, 4477949), (49, 3198535), (61, 2569315), (245, 639707), (305, 513863), (427, 367045), (2135, 73409), (2989, 52435), (10487, 14945)]