128549456

素因数分解:

$2^4\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2203}}^1$

素因数の和:2739

約数の個数: 40

約数和(自身を含む): 285321024

約数和(自身を除く): 156771568

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 521, 1042, 2084, 2203, 3647, 4168, 4406, 7294, 8336, 8812, 14588, 15421, 17624, 29176, 30842, 35248, 58352, 61684, 123368, 246736, 1147763, 2295526, 4591052, 8034341, 9182104, 16068682, 18364208, 32137364, 64274728, 128549456]

約数ペア:

[(1, 128549456), (2, 64274728), (4, 32137364), (7, 18364208), (8, 16068682), (14, 9182104), (16, 8034341), (28, 4591052), (56, 2295526), (112, 1147763), (521, 246736), (1042, 123368), (2084, 61684), (2203, 58352), (3647, 35248), (4168, 30842), (4406, 29176), (7294, 17624), (8336, 15421), (8812, 14588)]