64778128

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{449}}^1$

素因数の和:655

約数の個数: 40

約数和(自身を含む): 128563200

約数和(自身を除く): 63785072

約数列:

[1, 2, 4, 8, 16, 71, 127, 142, 254, 284, 449, 508, 568, 898, 1016, 1136, 1796, 2032, 3592, 7184, 9017, 18034, 31879, 36068, 57023, 63758, 72136, 114046, 127516, 144272, 228092, 255032, 456184, 510064, 912368, 4048633, 8097266, 16194532, 32389064, 64778128]

約数ペア:

[(1, 64778128), (2, 32389064), (4, 16194532), (8, 8097266), (16, 4048633), (71, 912368), (127, 510064), (142, 456184), (254, 255032), (284, 228092), (449, 144272), (508, 127516), (568, 114046), (898, 72136), (1016, 63758), (1136, 57023), (1796, 36068), (2032, 31879), (3592, 18034), (7184, 9017)]