20725480958

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{236749}}^1$

素因数の和:236821

約数の個数: 48

約数和(自身を含む): 39512628000

約数和(自身を除く): 18787147042

約数列:

[1, 2, 7, 13, 14, 26, 37, 74, 91, 169, 182, 259, 338, 481, 518, 962, 1183, 2366, 3367, 6253, 6734, 12506, 43771, 87542, 236749, 473498, 1657243, 3077737, 3314486, 6155474, 8759713, 17519426, 21544159, 40010581, 43088318, 61317991, 80021162, 113876269, 122635982, 227752538, 280074067, 560148134, 797133883, 1480391497, 1594267766, 2960782994, 10362740479, 20725480958]

約数ペア:

[(1, 20725480958), (2, 10362740479), (7, 2960782994), (13, 1594267766), (14, 1480391497), (26, 797133883), (37, 560148134), (74, 280074067), (91, 227752538), (169, 122635982), (182, 113876269), (259, 80021162), (338, 61317991), (481, 43088318), (518, 40010581), (962, 21544159), (1183, 17519426), (2366, 8759713), (3367, 6155474), (6253, 3314486), (6734, 3077737), (12506, 1657243), (43771, 473498), (87542, 236749)]