19754860

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1459}}^1$

素因数の和:2145

約数の個数: 24

約数和(自身を含む): 41574960

約数和(自身を除く): 21820100

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 1459, 2708, 2918, 3385, 5836, 6770, 7295, 13540, 14590, 29180, 987743, 1975486, 3950972, 4938715, 9877430, 19754860]

約数ペア:

[(1, 19754860), (2, 9877430), (4, 4938715), (5, 3950972), (10, 1975486), (20, 987743), (677, 29180), (1354, 14590), (1459, 13540), (2708, 7295), (2918, 6770), (3385, 5836)]