809652920

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{18553}}^1$

素因数の和:19655

約数の個数: 32

約数和(自身を含む): 1823487120

約数和(自身を除く): 1013834200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 2182, 4364, 5455, 8728, 10910, 18553, 21820, 37106, 43640, 74212, 92765, 148424, 185530, 371060, 742120, 20241323, 40482646, 80965292, 101206615, 161930584, 202413230, 404826460, 809652920]

約数ペア:

[(1, 809652920), (2, 404826460), (4, 202413230), (5, 161930584), (8, 101206615), (10, 80965292), (20, 40482646), (40, 20241323), (1091, 742120), (2182, 371060), (4364, 185530), (5455, 148424), (8728, 92765), (10910, 74212), (18553, 43640), (21820, 37106)]