20160920120

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{178289}}^1$

素因数の和:178568

約数の個数: 64

約数和(自身を含む): 49678725600

約数和(自身を除く): 29517805480

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 257, 440, 514, 1028, 1285, 2056, 2570, 2827, 5140, 5654, 10280, 11308, 14135, 22616, 28270, 56540, 113080, 178289, 356578, 713156, 891445, 1426312, 1782890, 1961179, 3565780, 3922358, 7131560, 7844716, 9805895, 15689432, 19611790, 39223580, 45820273, 78447160, 91640546, 183281092, 229101365, 366562184, 458202730, 504023003, 916405460, 1008046006, 1832810920, 2016092012, 2520115015, 4032184024, 5040230030, 10080460060, 20160920120]

約数ペア:

[(1, 20160920120), (2, 10080460060), (4, 5040230030), (5, 4032184024), (8, 2520115015), (10, 2016092012), (11, 1832810920), (20, 1008046006), (22, 916405460), (40, 504023003), (44, 458202730), (55, 366562184), (88, 229101365), (110, 183281092), (220, 91640546), (257, 78447160), (440, 45820273), (514, 39223580), (1028, 19611790), (1285, 15689432), (2056, 9805895), (2570, 7844716), (2827, 7131560), (5140, 3922358), (5654, 3565780), (10280, 1961179), (11308, 1782890), (14135, 1426312), (22616, 891445), (28270, 713156), (56540, 356578), (113080, 178289)]