20705412

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:377

約数の個数: 96

約数和(自身を含む): 60562432

約数和(自身を除く): 39857020

約数列:

[1, 2, 3, 4, 6, 7, 12, 13, 14, 21, 26, 28, 39, 42, 52, 67, 78, 84, 91, 134, 156, 182, 201, 268, 273, 283, 364, 402, 469, 546, 566, 804, 849, 871, 938, 1092, 1132, 1407, 1698, 1742, 1876, 1981, 2613, 2814, 3396, 3484, 3679, 3962, 5226, 5628, 5943, 6097, 7358, 7924, 10452, 11037, 11886, 12194, 14716, 18291, 18961, 22074, 23772, 24388, 25753, 36582, 37922, 44148, 51506, 56883, 73164, 75844, 77259, 103012, 113766, 132727, 154518, 227532, 246493, 265454, 309036, 398181, 492986, 530908, 739479, 796362, 985972, 1478958, 1592724, 1725451, 2957916, 3450902, 5176353, 6901804, 10352706, 20705412]

約数ペア:

[(1, 20705412), (2, 10352706), (3, 6901804), (4, 5176353), (6, 3450902), (7, 2957916), (12, 1725451), (13, 1592724), (14, 1478958), (21, 985972), (26, 796362), (28, 739479), (39, 530908), (42, 492986), (52, 398181), (67, 309036), (78, 265454), (84, 246493), (91, 227532), (134, 154518), (156, 132727), (182, 113766), (201, 103012), (268, 77259), (273, 75844), (283, 73164), (364, 56883), (402, 51506), (469, 44148), (546, 37922), (566, 36582), (804, 25753), (849, 24388), (871, 23772), (938, 22074), (1092, 18961), (1132, 18291), (1407, 14716), (1698, 12194), (1742, 11886), (1876, 11037), (1981, 10452), (2613, 7924), (2814, 7358), (3396, 6097), (3484, 5943), (3679, 5628), (3962, 5226)]