31966280

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2521}}^1$

素因数の和:2849

約数の個数: 32

約数和(自身を含む): 72179640

約数和(自身を除く): 40213360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2521, 2536, 3170, 5042, 6340, 10084, 12605, 12680, 20168, 25210, 50420, 100840, 799157, 1598314, 3196628, 3995785, 6393256, 7991570, 15983140, 31966280]

約数ペア:

[(1, 31966280), (2, 15983140), (4, 7991570), (5, 6393256), (8, 3995785), (10, 3196628), (20, 1598314), (40, 799157), (317, 100840), (634, 50420), (1268, 25210), (1585, 20168), (2521, 12680), (2536, 12605), (3170, 10084), (5042, 6340)]