18785480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2917}}^1$

素因数の和:2958

約数の個数: 64

約数和(自身を含む): 50423040

約数和(自身を除く): 31637560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2917, 3220, 5834, 6440, 11668, 14585, 20419, 23336, 29170, 40838, 58340, 67091, 81676, 102095, 116680, 134182, 163352, 204190, 268364, 335455, 408380, 469637, 536728, 670910, 816760, 939274, 1341820, 1878548, 2348185, 2683640, 3757096, 4696370, 9392740, 18785480]

約数ペア:

[(1, 18785480), (2, 9392740), (4, 4696370), (5, 3757096), (7, 2683640), (8, 2348185), (10, 1878548), (14, 1341820), (20, 939274), (23, 816760), (28, 670910), (35, 536728), (40, 469637), (46, 408380), (56, 335455), (70, 268364), (92, 204190), (115, 163352), (140, 134182), (161, 116680), (184, 102095), (230, 81676), (280, 67091), (322, 58340), (460, 40838), (644, 29170), (805, 23336), (920, 20419), (1288, 14585), (1610, 11668), (2917, 6440), (3220, 5834)]