20385670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{5647}}^1$

素因数の和:5692

約数の個数: 24

約数和(自身を含む): 38733984

約数和(自身を除く): 18348314

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 361, 722, 1805, 3610, 5647, 11294, 28235, 56470, 107293, 214586, 536465, 1072930, 2038567, 4077134, 10192835, 20385670]

約数ペア:

[(1, 20385670), (2, 10192835), (5, 4077134), (10, 2038567), (19, 1072930), (38, 536465), (95, 214586), (190, 107293), (361, 56470), (722, 28235), (1805, 11294), (3610, 5647)]