66643480

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4283}}^1$

素因数の和:4683

約数の個数: 32

約数和(自身を含む): 150368400

約数和(自身を除く): 83724920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4283, 7780, 8566, 15560, 17132, 21415, 34264, 42830, 85660, 171320, 1666087, 3332174, 6664348, 8330435, 13328696, 16660870, 33321740, 66643480]

約数ペア:

[(1, 66643480), (2, 33321740), (4, 16660870), (5, 13328696), (8, 8330435), (10, 6664348), (20, 3332174), (40, 1666087), (389, 171320), (778, 85660), (1556, 42830), (1945, 34264), (3112, 21415), (3890, 17132), (4283, 15560), (7780, 8566)]