81245456

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{39983}}^1$

素因数の和:40118

約数の個数: 20

約数和(自身を含む): 158656512

約数和(自身を除く): 77411056

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 39983, 79966, 159932, 319864, 639728, 5077841, 10155682, 20311364, 40622728, 81245456]

約数ペア:

[(1, 81245456), (2, 40622728), (4, 20311364), (8, 10155682), (16, 5077841), (127, 639728), (254, 319864), (508, 159932), (1016, 79966), (2032, 39983)]