81449410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{419}}^1\times {\mathrm{2777}}^1$

素因数の和:3210

約数の個数: 32

約数和(自身を含む): 168013440

約数和(自身を除く): 86564030

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 419, 838, 2095, 2777, 2933, 4190, 5554, 5866, 13885, 14665, 19439, 27770, 29330, 38878, 97195, 194390, 1163563, 2327126, 5817815, 8144941, 11635630, 16289882, 40724705, 81449410]

約数ペア:

[(1, 81449410), (2, 40724705), (5, 16289882), (7, 11635630), (10, 8144941), (14, 5817815), (35, 2327126), (70, 1163563), (419, 194390), (838, 97195), (2095, 38878), (2777, 29330), (2933, 27770), (4190, 19439), (5554, 14665), (5866, 13885)]