81539068

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{389}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 160524000

約数和(自身を除く): 78984932

約数列:

[1, 2, 4, 13, 26, 29, 52, 58, 116, 139, 278, 377, 389, 556, 754, 778, 1508, 1556, 1807, 3614, 4031, 5057, 7228, 8062, 10114, 11281, 16124, 20228, 22562, 45124, 52403, 54071, 104806, 108142, 146653, 209612, 216284, 293306, 586612, 702923, 1405846, 1568059, 2811692, 3136118, 6272236, 20384767, 40769534, 81539068]

約数ペア:

[(1, 81539068), (2, 40769534), (4, 20384767), (13, 6272236), (26, 3136118), (29, 2811692), (52, 1568059), (58, 1405846), (116, 702923), (139, 586612), (278, 293306), (377, 216284), (389, 209612), (556, 146653), (754, 108142), (778, 104806), (1508, 54071), (1556, 52403), (1807, 45124), (3614, 22562), (4031, 20228), (5057, 16124), (7228, 11281), (8062, 10114)]