19646540

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1451}}^1$

素因数の和:2137

約数の個数: 24

約数和(自身を含む): 41347152

約数和(自身を除く): 21700612

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 1451, 2708, 2902, 3385, 5804, 6770, 7255, 13540, 14510, 29020, 982327, 1964654, 3929308, 4911635, 9823270, 19646540]

約数ペア:

[(1, 19646540), (2, 9823270), (4, 4911635), (5, 3929308), (10, 1964654), (20, 982327), (677, 29020), (1354, 14510), (1451, 13540), (2708, 7255), (2902, 6770), (3385, 5804)]