20516552

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{937}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 48625920

約数和(自身を除く): 28109368

約数列:

[1, 2, 4, 7, 8, 14, 17, 23, 28, 34, 46, 56, 68, 92, 119, 136, 161, 184, 238, 322, 391, 476, 644, 782, 937, 952, 1288, 1564, 1874, 2737, 3128, 3748, 5474, 6559, 7496, 10948, 13118, 15929, 21551, 21896, 26236, 31858, 43102, 52472, 63716, 86204, 111503, 127432, 150857, 172408, 223006, 301714, 366367, 446012, 603428, 732734, 892024, 1206856, 1465468, 2564569, 2930936, 5129138, 10258276, 20516552]

約数ペア:

[(1, 20516552), (2, 10258276), (4, 5129138), (7, 2930936), (8, 2564569), (14, 1465468), (17, 1206856), (23, 892024), (28, 732734), (34, 603428), (46, 446012), (56, 366367), (68, 301714), (92, 223006), (119, 172408), (136, 150857), (161, 127432), (184, 111503), (238, 86204), (322, 63716), (391, 52472), (476, 43102), (644, 31858), (782, 26236), (937, 21896), (952, 21551), (1288, 15929), (1564, 13118), (1874, 10948), (2737, 7496), (3128, 6559), (3748, 5474)]