991569140

素因数分解:

$2^2\times 5^1\times {\mathrm{1741}}^1\times {\mathrm{28477}}^1$

素因数の和:30227

約数の個数: 24

約数和(自身を含む): 2083564392

約数和(自身を除く): 1091995252

約数列:

[1, 2, 4, 5, 10, 20, 1741, 3482, 6964, 8705, 17410, 28477, 34820, 56954, 113908, 142385, 284770, 569540, 49578457, 99156914, 198313828, 247892285, 495784570, 991569140]

約数ペア:

[(1, 991569140), (2, 495784570), (4, 247892285), (5, 198313828), (10, 99156914), (20, 49578457), (1741, 569540), (3482, 284770), (6964, 142385), (8705, 113908), (17410, 56954), (28477, 34820)]