131720440

素因数分解:

$2^3\times 5^1\times {\mathrm{1151}}^1\times {\mathrm{2861}}^1$

素因数の和:4023

約数の個数: 32

約数和(自身を含む): 296732160

約数和(自身を除く): 165011720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1151, 2302, 2861, 4604, 5722, 5755, 9208, 11444, 11510, 14305, 22888, 23020, 28610, 46040, 57220, 114440, 3293011, 6586022, 13172044, 16465055, 26344088, 32930110, 65860220, 131720440]

約数ペア:

[(1, 131720440), (2, 65860220), (4, 32930110), (5, 26344088), (8, 16465055), (10, 13172044), (20, 6586022), (40, 3293011), (1151, 114440), (2302, 57220), (2861, 46040), (4604, 28610), (5722, 23020), (5755, 22888), (9208, 14305), (11444, 11510)]