638860285

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{89917}}^1$

素因数の和:89965

約数の個数: 24

約数和(自身を含む): 922558680

約数和(自身を除く): 283698395

約数列:

[1, 5, 7, 29, 35, 49, 145, 203, 245, 1015, 1421, 7105, 89917, 449585, 629419, 2607593, 3147095, 4405933, 13037965, 18253151, 22029665, 91265755, 127772057, 638860285]

約数ペア:

[(1, 638860285), (5, 127772057), (7, 91265755), (29, 22029665), (35, 18253151), (49, 13037965), (145, 4405933), (203, 3147095), (245, 2607593), (1015, 629419), (1421, 449585), (7105, 89917)]