87849640

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{20149}}^1$

素因数の和:20269

約数の個数: 32

約数和(自身を含む): 199485000

約数和(自身を除く): 111635360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 20149, 40298, 80596, 100745, 161192, 201490, 402980, 805960, 2196241, 4392482, 8784964, 10981205, 17569928, 21962410, 43924820, 87849640]

約数ペア:

[(1, 87849640), (2, 43924820), (4, 21962410), (5, 17569928), (8, 10981205), (10, 8784964), (20, 4392482), (40, 2196241), (109, 805960), (218, 402980), (436, 201490), (545, 161192), (872, 100745), (1090, 80596), (2180, 40298), (4360, 20149)]