8181340

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3221}}^1$

素因数の和:3357

約数の個数: 24

約数和(自身を含む): 17321472

約数和(自身を除く): 9140132

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 3221, 6442, 12884, 16105, 32210, 64420, 409067, 818134, 1636268, 2045335, 4090670, 8181340]

約数ペア:

[(1, 8181340), (2, 4090670), (4, 2045335), (5, 1636268), (10, 818134), (20, 409067), (127, 64420), (254, 32210), (508, 16105), (635, 12884), (1270, 6442), (2540, 3221)]