20437980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{340633}}^1$

素因数の和:340645

約数の個数: 24

約数和(自身を含む): 57226512

約数和(自身を除く): 36788532

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 340633, 681266, 1021899, 1362532, 1703165, 2043798, 3406330, 4087596, 5109495, 6812660, 10218990, 20437980]

約数ペア:

[(1, 20437980), (2, 10218990), (3, 6812660), (4, 5109495), (5, 4087596), (6, 3406330), (10, 2043798), (12, 1703165), (15, 1362532), (20, 1021899), (30, 681266), (60, 340633)]