20803670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{491}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 18871210

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 223, 446, 491, 982, 1115, 2230, 2455, 4237, 4910, 8474, 9329, 18658, 21185, 42370, 46645, 93290, 109493, 218986, 547465, 1094930, 2080367, 4160734, 10401835, 20803670]

約数ペア:

[(1, 20803670), (2, 10401835), (5, 4160734), (10, 2080367), (19, 1094930), (38, 547465), (95, 218986), (190, 109493), (223, 93290), (446, 46645), (491, 42370), (982, 21185), (1115, 18658), (2230, 9329), (2455, 8474), (4237, 4910)]