1320777620

素因数分解:

$2^2\times 5^1\times {\mathrm{13807}}^1\times {\mathrm{4783}}^1$

素因数の和:18599

約数の個数: 24

約数和(自身を含む): 2774413824

約数和(自身を除く): 1453636204

約数列:

[1, 2, 4, 5, 10, 20, 4783, 9566, 13807, 19132, 23915, 27614, 47830, 55228, 69035, 95660, 138070, 276140, 66038881, 132077762, 264155524, 330194405, 660388810, 1320777620]

約数ペア:

[(1, 1320777620), (2, 660388810), (4, 330194405), (5, 264155524), (10, 132077762), (20, 66038881), (4783, 276140), (9566, 138070), (13807, 95660), (19132, 69035), (23915, 55228), (27614, 47830)]