20756120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 60963840

約数和(自身を除く): 40207720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 23, 28, 35, 40, 44, 46, 55, 56, 70, 77, 88, 92, 110, 115, 140, 154, 161, 184, 220, 230, 253, 280, 293, 308, 322, 385, 440, 460, 506, 586, 616, 644, 770, 805, 920, 1012, 1172, 1265, 1288, 1465, 1540, 1610, 1771, 2024, 2051, 2344, 2530, 2930, 3080, 3220, 3223, 3542, 4102, 5060, 5860, 6440, 6446, 6739, 7084, 8204, 8855, 10120, 10255, 11720, 12892, 13478, 14168, 16115, 16408, 17710, 20510, 22561, 25784, 26956, 32230, 33695, 35420, 41020, 45122, 47173, 53912, 64460, 67390, 70840, 74129, 82040, 90244, 94346, 112805, 128920, 134780, 148258, 180488, 188692, 225610, 235865, 269560, 296516, 370645, 377384, 451220, 471730, 518903, 593032, 741290, 902440, 943460, 1037806, 1482580, 1886920, 2075612, 2594515, 2965160, 4151224, 5189030, 10378060, 20756120]

約数ペア:

[(1, 20756120), (2, 10378060), (4, 5189030), (5, 4151224), (7, 2965160), (8, 2594515), (10, 2075612), (11, 1886920), (14, 1482580), (20, 1037806), (22, 943460), (23, 902440), (28, 741290), (35, 593032), (40, 518903), (44, 471730), (46, 451220), (55, 377384), (56, 370645), (70, 296516), (77, 269560), (88, 235865), (92, 225610), (110, 188692), (115, 180488), (140, 148258), (154, 134780), (161, 128920), (184, 112805), (220, 94346), (230, 90244), (253, 82040), (280, 74129), (293, 70840), (308, 67390), (322, 64460), (385, 53912), (440, 47173), (460, 45122), (506, 41020), (586, 35420), (616, 33695), (644, 32230), (770, 26956), (805, 25784), (920, 22561), (1012, 20510), (1172, 17710), (1265, 16408), (1288, 16115), (1465, 14168), (1540, 13478), (1610, 12892), (1771, 11720), (2024, 10255), (2051, 10120), (2344, 8855), (2530, 8204), (2930, 7084), (3080, 6739), (3220, 6446), (3223, 6440), (3542, 5860), (4102, 5060)]