28402990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{36887}}^1$

素因数の和:36912

約数の個数: 32

約数和(自身を含む): 63742464

約数和(自身を除く): 35339474

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 36887, 73774, 184435, 258209, 368870, 405757, 516418, 811514, 1291045, 2028785, 2582090, 2840299, 4057570, 5680598, 14201495, 28402990]

約数ペア:

[(1, 28402990), (2, 14201495), (5, 5680598), (7, 4057570), (10, 2840299), (11, 2582090), (14, 2028785), (22, 1291045), (35, 811514), (55, 516418), (70, 405757), (77, 368870), (110, 258209), (154, 184435), (385, 73774), (770, 36887)]