199370620

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{72763}}^1$

素因数の和:72909

約数の個数: 24

約数和(自身を含む): 421740144

約数和(自身を除く): 222369524

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 72763, 145526, 291052, 363815, 727630, 1455260, 9968531, 19937062, 39874124, 49842655, 99685310, 199370620]

約数ペア:

[(1, 199370620), (2, 99685310), (4, 49842655), (5, 39874124), (10, 19937062), (20, 9968531), (137, 1455260), (274, 727630), (548, 363815), (685, 291052), (1370, 145526), (2740, 72763)]