64810640

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6379}}^1$

素因数の和:6519

約数の個数: 40

約数和(自身を含む): 151895040

約数和(自身を除く): 87084400

約数列:

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

約数ペア:

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