138999722

素因数分解:

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

素因数の和:426

約数の個数: 24

約数和(自身を含む): 218494080

約数和(自身を除く): 79494358

約数列:

[1, 2, 31, 62, 127, 139, 254, 278, 3937, 4309, 7874, 8618, 16129, 17653, 32258, 35306, 499999, 547243, 999998, 1094486, 2241931, 4483862, 69499861, 138999722]

約数ペア:

[(1, 138999722), (2, 69499861), (31, 4483862), (62, 2241931), (127, 1094486), (139, 999998), (254, 547243), (278, 499999), (3937, 35306), (4309, 32258), (7874, 17653), (8618, 16129)]