20061405

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1$

素因数の和:128

約数の個数: 128

約数和(自身を含む): 46448640

約数和(自身を除く): 26387235

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 23, 27, 35, 39, 45, 63, 65, 69, 71, 91, 105, 115, 117, 135, 161, 189, 195, 207, 213, 273, 299, 315, 345, 351, 355, 455, 483, 497, 585, 621, 639, 805, 819, 897, 923, 945, 1035, 1065, 1365, 1449, 1491, 1495, 1633, 1755, 1917, 2093, 2415, 2457, 2485, 2691, 2769, 3105, 3195, 4095, 4347, 4473, 4485, 4615, 4899, 6279, 6461, 7245, 7455, 8073, 8165, 8307, 9585, 10465, 11431, 12285, 13419, 13455, 13845, 14697, 18837, 19383, 21229, 21735, 22365, 24495, 24921, 31395, 32305, 34293, 40365, 41535, 44091, 56511, 57155, 58149, 63687, 67095, 73485, 94185, 96915, 102879, 106145, 124605, 148603, 171465, 174447, 191061, 220455, 282555, 290745, 308637, 318435, 445809, 514395, 573183, 743015, 872235, 955305, 1337427, 1543185, 2229045, 2865915, 4012281, 6687135, 20061405]

約数ペア:

[(1, 20061405), (3, 6687135), (5, 4012281), (7, 2865915), (9, 2229045), (13, 1543185), (15, 1337427), (21, 955305), (23, 872235), (27, 743015), (35, 573183), (39, 514395), (45, 445809), (63, 318435), (65, 308637), (69, 290745), (71, 282555), (91, 220455), (105, 191061), (115, 174447), (117, 171465), (135, 148603), (161, 124605), (189, 106145), (195, 102879), (207, 96915), (213, 94185), (273, 73485), (299, 67095), (315, 63687), (345, 58149), (351, 57155), (355, 56511), (455, 44091), (483, 41535), (497, 40365), (585, 34293), (621, 32305), (639, 31395), (805, 24921), (819, 24495), (897, 22365), (923, 21735), (945, 21229), (1035, 19383), (1065, 18837), (1365, 14697), (1449, 13845), (1491, 13455), (1495, 13419), (1633, 12285), (1755, 11431), (1917, 10465), (2093, 9585), (2415, 8307), (2457, 8165), (2485, 8073), (2691, 7455), (2769, 7245), (3105, 6461), (3195, 6279), (4095, 4899), (4347, 4615), (4473, 4485)]