861405818

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{241}}^1\times {\mathrm{479}}^1$

素因数の和:783

約数の個数: 64

約数和(自身を含む): 1639249920

約数和(自身を除く): 777844102

約数列:

[1, 2, 7, 13, 14, 26, 41, 82, 91, 182, 241, 287, 479, 482, 533, 574, 958, 1066, 1687, 3133, 3353, 3374, 3731, 6227, 6266, 6706, 7462, 9881, 12454, 19639, 19762, 21931, 39278, 43589, 43862, 69167, 87178, 115439, 128453, 137473, 138334, 230878, 255307, 256906, 274946, 510614, 808073, 899171, 1500707, 1616146, 1787149, 1798342, 3001414, 3574298, 4732999, 9465998, 10504949, 21009898, 33130993, 61528987, 66261986, 123057974, 430702909, 861405818]

約数ペア:

[(1, 861405818), (2, 430702909), (7, 123057974), (13, 66261986), (14, 61528987), (26, 33130993), (41, 21009898), (82, 10504949), (91, 9465998), (182, 4732999), (241, 3574298), (287, 3001414), (479, 1798342), (482, 1787149), (533, 1616146), (574, 1500707), (958, 899171), (1066, 808073), (1687, 510614), (3133, 274946), (3353, 256906), (3374, 255307), (3731, 230878), (6227, 138334), (6266, 137473), (6706, 128453), (7462, 115439), (9881, 87178), (12454, 69167), (19639, 43862), (19762, 43589), (21931, 39278)]