18858380

素因数分解:

$2^2\times 5^1\times {\mathrm{727}}^1\times {\mathrm{1297}}^1$

素因数の和:2033

約数の個数: 24

約数和(自身を含む): 39687648

約数和(自身を除く): 20829268

約数列:

[1, 2, 4, 5, 10, 20, 727, 1297, 1454, 2594, 2908, 3635, 5188, 6485, 7270, 12970, 14540, 25940, 942919, 1885838, 3771676, 4714595, 9429190, 18858380]

約数ペア:

[(1, 18858380), (2, 9429190), (4, 4714595), (5, 3771676), (10, 1885838), (20, 942919), (727, 25940), (1297, 14540), (1454, 12970), (2594, 7270), (2908, 6485), (3635, 5188)]