71420840

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{13033}}^1$

素因数の和:13181

約数の個数: 32

約数和(自身を含む): 161882280

約数和(自身を除く): 90461440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 13033, 26066, 52132, 65165, 104264, 130330, 260660, 521320, 1785521, 3571042, 7142084, 8927605, 14284168, 17855210, 35710420, 71420840]

約数ペア:

[(1, 71420840), (2, 35710420), (4, 17855210), (5, 14284168), (8, 8927605), (10, 7142084), (20, 3571042), (40, 1785521), (137, 521320), (274, 260660), (548, 130330), (685, 104264), (1096, 65165), (1370, 52132), (2740, 26066), (5480, 13033)]