85720216

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{499}}^1$

素因数の和:811

約数の個数: 32

約数和(自身を含む): 163350000

約数和(自身を除く): 77629784

約数列:

[1, 2, 4, 8, 109, 197, 218, 394, 436, 499, 788, 872, 998, 1576, 1996, 3992, 21473, 42946, 54391, 85892, 98303, 108782, 171784, 196606, 217564, 393212, 435128, 786424, 10715027, 21430054, 42860108, 85720216]

約数ペア:

[(1, 85720216), (2, 42860108), (4, 21430054), (8, 10715027), (109, 786424), (197, 435128), (218, 393212), (394, 217564), (436, 196606), (499, 171784), (788, 108782), (872, 98303), (998, 85892), (1576, 54391), (1996, 42946), (3992, 21473)]