20280545792

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{1613}}^1\times {\mathrm{1889}}^1$

素因数の和:3533

約数の個数: 80

約数和(自身を含む): 43688688120

約数和(自身を除く): 23408142328

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1613, 1664, 1889, 3226, 3328, 3778, 6452, 6656, 7556, 12904, 15112, 20969, 24557, 25808, 30224, 41938, 49114, 51616, 60448, 83876, 98228, 103232, 120896, 167752, 196456, 206464, 241792, 335504, 392912, 412928, 483584, 671008, 785824, 825856, 967168, 1342016, 1571648, 2684032, 3046957, 3143296, 5368064, 6093914, 6286592, 10736128, 12187828, 12573184, 24375656, 39610441, 48751312, 79220882, 97502624, 158441764, 195005248, 316883528, 390010496, 633767056, 780020992, 1267534112, 1560041984, 2535068224, 5070136448, 10140272896, 20280545792]

約数ペア:

[(1, 20280545792), (2, 10140272896), (4, 5070136448), (8, 2535068224), (13, 1560041984), (16, 1267534112), (26, 780020992), (32, 633767056), (52, 390010496), (64, 316883528), (104, 195005248), (128, 158441764), (208, 97502624), (256, 79220882), (416, 48751312), (512, 39610441), (832, 24375656), (1613, 12573184), (1664, 12187828), (1889, 10736128), (3226, 6286592), (3328, 6093914), (3778, 5368064), (6452, 3143296), (6656, 3046957), (7556, 2684032), (12904, 1571648), (15112, 1342016), (20969, 967168), (24557, 825856), (25808, 785824), (30224, 671008), (41938, 483584), (49114, 412928), (51616, 392912), (60448, 335504), (83876, 241792), (98228, 206464), (103232, 196456), (120896, 167752)]