80991964

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1$

素因数の和:338

約数の個数: 48

約数和(自身を含む): 152535040

約数和(自身を除く): 71543076

約数列:

[1, 2, 4, 31, 37, 62, 74, 124, 127, 139, 148, 254, 278, 508, 556, 1147, 2294, 3937, 4309, 4588, 4699, 5143, 7874, 8618, 9398, 10286, 15748, 17236, 17653, 18796, 20572, 35306, 70612, 145669, 159433, 291338, 318866, 547243, 582676, 637732, 653161, 1094486, 1306322, 2188972, 2612644, 20247991, 40495982, 80991964]

約数ペア:

[(1, 80991964), (2, 40495982), (4, 20247991), (31, 2612644), (37, 2188972), (62, 1306322), (74, 1094486), (124, 653161), (127, 637732), (139, 582676), (148, 547243), (254, 318866), (278, 291338), (508, 159433), (556, 145669), (1147, 70612), (2294, 35306), (3937, 20572), (4309, 18796), (4588, 17653), (4699, 17236), (5143, 15748), (7874, 10286), (8618, 9398)]