129621280

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6379}}^1$

素因数の和:6521

約数の個数: 48

約数和(自身を含む): 308689920

約数和(自身を除く): 179068640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 6379, 10160, 12758, 20320, 25516, 31895, 51032, 63790, 102064, 127580, 204128, 255160, 510320, 810133, 1020640, 1620266, 3240532, 4050665, 6481064, 8101330, 12962128, 16202660, 25924256, 32405320, 64810640, 129621280]

約数ペア:

[(1, 129621280), (2, 64810640), (4, 32405320), (5, 25924256), (8, 16202660), (10, 12962128), (16, 8101330), (20, 6481064), (32, 4050665), (40, 3240532), (80, 1620266), (127, 1020640), (160, 810133), (254, 510320), (508, 255160), (635, 204128), (1016, 127580), (1270, 102064), (2032, 63790), (2540, 51032), (4064, 31895), (5080, 25516), (6379, 20320), (10160, 12758)]