38581640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{8849}}^1$

素因数の和:8969

約数の個数: 32

約数和(自身を含む): 87615000

約数和(自身を除く): 49033360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 8849, 17698, 35396, 44245, 70792, 88490, 176980, 353960, 964541, 1929082, 3858164, 4822705, 7716328, 9645410, 19290820, 38581640]

約数ペア:

[(1, 38581640), (2, 19290820), (4, 9645410), (5, 7716328), (8, 4822705), (10, 3858164), (20, 1929082), (40, 964541), (109, 353960), (218, 176980), (436, 88490), (545, 70792), (872, 44245), (1090, 35396), (2180, 17698), (4360, 8849)]