20482440

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{263}}^1$

素因数の和:347

約数の個数: 128

約数和(自身を含む): 68428800

約数和(自身を除く): 47946360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 59, 60, 66, 88, 110, 118, 120, 132, 165, 177, 220, 236, 263, 264, 295, 330, 354, 440, 472, 526, 590, 649, 660, 708, 789, 885, 1052, 1180, 1298, 1315, 1320, 1416, 1578, 1770, 1947, 2104, 2360, 2596, 2630, 2893, 3156, 3245, 3540, 3894, 3945, 5192, 5260, 5786, 6312, 6490, 7080, 7788, 7890, 8679, 9735, 10520, 11572, 12980, 14465, 15517, 15576, 15780, 17358, 19470, 23144, 25960, 28930, 31034, 31560, 34716, 38940, 43395, 46551, 57860, 62068, 69432, 77585, 77880, 86790, 93102, 115720, 124136, 155170, 170687, 173580, 186204, 232755, 310340, 341374, 347160, 372408, 465510, 512061, 620680, 682748, 853435, 931020, 1024122, 1365496, 1706870, 1862040, 2048244, 2560305, 3413740, 4096488, 5120610, 6827480, 10241220, 20482440]

約数ペア:

[(1, 20482440), (2, 10241220), (3, 6827480), (4, 5120610), (5, 4096488), (6, 3413740), (8, 2560305), (10, 2048244), (11, 1862040), (12, 1706870), (15, 1365496), (20, 1024122), (22, 931020), (24, 853435), (30, 682748), (33, 620680), (40, 512061), (44, 465510), (55, 372408), (59, 347160), (60, 341374), (66, 310340), (88, 232755), (110, 186204), (118, 173580), (120, 170687), (132, 155170), (165, 124136), (177, 115720), (220, 93102), (236, 86790), (263, 77880), (264, 77585), (295, 69432), (330, 62068), (354, 57860), (440, 46551), (472, 43395), (526, 38940), (590, 34716), (649, 31560), (660, 31034), (708, 28930), (789, 25960), (885, 23144), (1052, 19470), (1180, 17358), (1298, 15780), (1315, 15576), (1320, 15517), (1416, 14465), (1578, 12980), (1770, 11572), (1947, 10520), (2104, 9735), (2360, 8679), (2596, 7890), (2630, 7788), (2893, 7080), (3156, 6490), (3245, 6312), (3540, 5786), (3894, 5260), (3945, 5192)]