19780060

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7219}}^1$

素因数の和:7365

約数の個数: 24

約数和(自身を含む): 41847120

約数和(自身を除く): 22067060

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 7219, 14438, 28876, 36095, 72190, 144380, 989003, 1978006, 3956012, 4945015, 9890030, 19780060]

約数ペア:

[(1, 19780060), (2, 9890030), (4, 4945015), (5, 3956012), (10, 1978006), (20, 989003), (137, 144380), (274, 72190), (548, 36095), (685, 28876), (1370, 14438), (2740, 7219)]