129019280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{947}}^1$

素因数の和:1104

約数の個数: 80

約数和(自身を含む): 325854144

約数和(自身を除く): 196834864

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 131, 208, 260, 262, 520, 524, 655, 947, 1040, 1048, 1310, 1703, 1894, 2096, 2620, 3406, 3788, 4735, 5240, 6812, 7576, 8515, 9470, 10480, 12311, 13624, 15152, 17030, 18940, 24622, 27248, 34060, 37880, 49244, 61555, 68120, 75760, 98488, 123110, 124057, 136240, 196976, 246220, 248114, 492440, 496228, 620285, 984880, 992456, 1240570, 1612741, 1984912, 2481140, 3225482, 4962280, 6450964, 8063705, 9924560, 12901928, 16127410, 25803856, 32254820, 64509640, 129019280]

約数ペア:

[(1, 129019280), (2, 64509640), (4, 32254820), (5, 25803856), (8, 16127410), (10, 12901928), (13, 9924560), (16, 8063705), (20, 6450964), (26, 4962280), (40, 3225482), (52, 2481140), (65, 1984912), (80, 1612741), (104, 1240570), (130, 992456), (131, 984880), (208, 620285), (260, 496228), (262, 492440), (520, 248114), (524, 246220), (655, 196976), (947, 136240), (1040, 124057), (1048, 123110), (1310, 98488), (1703, 75760), (1894, 68120), (2096, 61555), (2620, 49244), (3406, 37880), (3788, 34060), (4735, 27248), (5240, 24622), (6812, 18940), (7576, 17030), (8515, 15152), (9470, 13624), (10480, 12311)]