51168280

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:544

約数の個数: 64

約数和(自身を含む): 119750400

約数和(自身を除く): 68582120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 71, 86, 142, 172, 215, 284, 344, 355, 419, 430, 568, 710, 838, 860, 1420, 1676, 1720, 2095, 2840, 3053, 3352, 4190, 6106, 8380, 12212, 15265, 16760, 18017, 24424, 29749, 30530, 36034, 59498, 61060, 72068, 90085, 118996, 122120, 144136, 148745, 180170, 237992, 297490, 360340, 594980, 720680, 1189960, 1279207, 2558414, 5116828, 6396035, 10233656, 12792070, 25584140, 51168280]

約数ペア:

[(1, 51168280), (2, 25584140), (4, 12792070), (5, 10233656), (8, 6396035), (10, 5116828), (20, 2558414), (40, 1279207), (43, 1189960), (71, 720680), (86, 594980), (142, 360340), (172, 297490), (215, 237992), (284, 180170), (344, 148745), (355, 144136), (419, 122120), (430, 118996), (568, 90085), (710, 72068), (838, 61060), (860, 59498), (1420, 36034), (1676, 30530), (1720, 29749), (2095, 24424), (2840, 18017), (3053, 16760), (3352, 15265), (4190, 12212), (6106, 8380)]