661415508

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{1429}}^1$

素因数の和:1518

約数の個数: 144

約数和(自身を含む): 1923841920

約数和(自身を除く): 1262426412

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 36, 39, 43, 46, 52, 69, 78, 86, 92, 117, 129, 138, 156, 172, 207, 234, 258, 276, 299, 387, 414, 468, 516, 559, 598, 774, 828, 897, 989, 1118, 1196, 1429, 1548, 1677, 1794, 1978, 2236, 2691, 2858, 2967, 3354, 3588, 3956, 4287, 5031, 5382, 5716, 5934, 6708, 8574, 8901, 10062, 10764, 11868, 12857, 12861, 17148, 17802, 18577, 20124, 25714, 25722, 32867, 35604, 37154, 38571, 51428, 51444, 55731, 61447, 65734, 74308, 77142, 98601, 111462, 115713, 122894, 131468, 154284, 167193, 184341, 197202, 222924, 231426, 245788, 295803, 334386, 368682, 394404, 427271, 462852, 553023, 591606, 668772, 737364, 798811, 854542, 1106046, 1183212, 1281813, 1413281, 1597622, 1709084, 2212092, 2396433, 2563626, 2826562, 3195244, 3845439, 4239843, 4792866, 5127252, 5653124, 7189299, 7690878, 8479686, 9585732, 12719529, 14378598, 15381756, 16959372, 18372653, 25439058, 28757196, 36745306, 50878116, 55117959, 73490612, 110235918, 165353877, 220471836, 330707754, 661415508]

約数ペア:

[(1, 661415508), (2, 330707754), (3, 220471836), (4, 165353877), (6, 110235918), (9, 73490612), (12, 55117959), (13, 50878116), (18, 36745306), (23, 28757196), (26, 25439058), (36, 18372653), (39, 16959372), (43, 15381756), (46, 14378598), (52, 12719529), (69, 9585732), (78, 8479686), (86, 7690878), (92, 7189299), (117, 5653124), (129, 5127252), (138, 4792866), (156, 4239843), (172, 3845439), (207, 3195244), (234, 2826562), (258, 2563626), (276, 2396433), (299, 2212092), (387, 1709084), (414, 1597622), (468, 1413281), (516, 1281813), (559, 1183212), (598, 1106046), (774, 854542), (828, 798811), (897, 737364), (989, 668772), (1118, 591606), (1196, 553023), (1429, 462852), (1548, 427271), (1677, 394404), (1794, 368682), (1978, 334386), (2236, 295803), (2691, 245788), (2858, 231426), (2967, 222924), (3354, 197202), (3588, 184341), (3956, 167193), (4287, 154284), (5031, 131468), (5382, 122894), (5716, 115713), (5934, 111462), (6708, 98601), (8574, 77142), (8901, 74308), (10062, 65734), (10764, 61447), (11868, 55731), (12857, 51444), (12861, 51428), (17148, 38571), (17802, 37154), (18577, 35604), (20124, 32867), (25714, 25722)]