19783330

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{409}}^1\times {\mathrm{691}}^1$

素因数の和:1114

約数の個数: 32

約数和(自身を含む): 40855680

約数和(自身を除く): 21072350

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 409, 691, 818, 1382, 2045, 2863, 3455, 4090, 4837, 5726, 6910, 9674, 14315, 24185, 28630, 48370, 282619, 565238, 1413095, 1978333, 2826190, 3956666, 9891665, 19783330]

約数ペア:

[(1, 19783330), (2, 9891665), (5, 3956666), (7, 2826190), (10, 1978333), (14, 1413095), (35, 565238), (70, 282619), (409, 48370), (691, 28630), (818, 24185), (1382, 14315), (2045, 9674), (2863, 6910), (3455, 5726), (4090, 4837)]