81861290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{68791}}^1$

素因数の和:68822

約数の個数: 32

約数和(自身を含む): 178308864

約数和(自身を除く): 96447574

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 70, 85, 119, 170, 238, 595, 1190, 68791, 137582, 343955, 481537, 687910, 963074, 1169447, 2338894, 2407685, 4815370, 5847235, 8186129, 11694470, 16372258, 40930645, 81861290]

約数ペア:

[(1, 81861290), (2, 40930645), (5, 16372258), (7, 11694470), (10, 8186129), (14, 5847235), (17, 4815370), (34, 2407685), (35, 2338894), (70, 1169447), (85, 963074), (119, 687910), (170, 481537), (238, 343955), (595, 137582), (1190, 68791)]