20289864

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 128

約数和(自身を含む): 62208000

約数和(自身を除く): 41918136

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 23, 24, 28, 42, 46, 56, 59, 69, 84, 89, 92, 118, 138, 161, 168, 177, 178, 184, 236, 267, 276, 322, 354, 356, 413, 472, 483, 534, 552, 623, 644, 708, 712, 826, 966, 1068, 1239, 1246, 1288, 1357, 1416, 1652, 1869, 1932, 2047, 2136, 2478, 2492, 2714, 3304, 3738, 3864, 4071, 4094, 4956, 4984, 5251, 5428, 6141, 7476, 8142, 8188, 9499, 9912, 10502, 10856, 12282, 14329, 14952, 15753, 16284, 16376, 18998, 21004, 24564, 28497, 28658, 31506, 32568, 36757, 37996, 42008, 42987, 49128, 56994, 57316, 63012, 73514, 75992, 85974, 110271, 113988, 114632, 120773, 126024, 147028, 171948, 220542, 227976, 241546, 294056, 343896, 362319, 441084, 483092, 724638, 845411, 882168, 966184, 1449276, 1690822, 2536233, 2898552, 3381644, 5072466, 6763288, 10144932, 20289864]

約数ペア:

[(1, 20289864), (2, 10144932), (3, 6763288), (4, 5072466), (6, 3381644), (7, 2898552), (8, 2536233), (12, 1690822), (14, 1449276), (21, 966184), (23, 882168), (24, 845411), (28, 724638), (42, 483092), (46, 441084), (56, 362319), (59, 343896), (69, 294056), (84, 241546), (89, 227976), (92, 220542), (118, 171948), (138, 147028), (161, 126024), (168, 120773), (177, 114632), (178, 113988), (184, 110271), (236, 85974), (267, 75992), (276, 73514), (322, 63012), (354, 57316), (356, 56994), (413, 49128), (472, 42987), (483, 42008), (534, 37996), (552, 36757), (623, 32568), (644, 31506), (708, 28658), (712, 28497), (826, 24564), (966, 21004), (1068, 18998), (1239, 16376), (1246, 16284), (1288, 15753), (1357, 14952), (1416, 14329), (1652, 12282), (1869, 10856), (1932, 10502), (2047, 9912), (2136, 9499), (2478, 8188), (2492, 8142), (2714, 7476), (3304, 6141), (3738, 5428), (3864, 5251), (4071, 4984), (4094, 4956)]