638522984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{87421}}^1$

素因数の和:87521

約数の個数: 32

約数和(自身を含む): 1321820640

約数和(自身を除く): 683297656

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 166, 332, 664, 913, 1826, 3652, 7304, 87421, 174842, 349684, 699368, 961631, 1923262, 3846524, 7255943, 7693048, 14511886, 29023772, 58047544, 79815373, 159630746, 319261492, 638522984]

約数ペア:

[(1, 638522984), (2, 319261492), (4, 159630746), (8, 79815373), (11, 58047544), (22, 29023772), (44, 14511886), (83, 7693048), (88, 7255943), (166, 3846524), (332, 1923262), (664, 961631), (913, 699368), (1826, 349684), (3652, 174842), (7304, 87421)]