20043856

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 47996928

約数和(自身を除く): 27953072

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 31, 46, 56, 62, 92, 112, 124, 161, 184, 217, 248, 251, 322, 368, 434, 496, 502, 644, 713, 868, 1004, 1288, 1426, 1736, 1757, 2008, 2576, 2852, 3472, 3514, 4016, 4991, 5704, 5773, 7028, 7781, 9982, 11408, 11546, 14056, 15562, 19964, 23092, 28112, 31124, 39928, 40411, 46184, 54467, 62248, 79856, 80822, 92368, 108934, 124496, 161644, 178963, 217868, 323288, 357926, 435736, 646576, 715852, 871472, 1252741, 1431704, 2505482, 2863408, 5010964, 10021928, 20043856]

約数ペア:

[(1, 20043856), (2, 10021928), (4, 5010964), (7, 2863408), (8, 2505482), (14, 1431704), (16, 1252741), (23, 871472), (28, 715852), (31, 646576), (46, 435736), (56, 357926), (62, 323288), (92, 217868), (112, 178963), (124, 161644), (161, 124496), (184, 108934), (217, 92368), (248, 80822), (251, 79856), (322, 62248), (368, 54467), (434, 46184), (496, 40411), (502, 39928), (644, 31124), (713, 28112), (868, 23092), (1004, 19964), (1288, 15562), (1426, 14056), (1736, 11546), (1757, 11408), (2008, 9982), (2576, 7781), (2852, 7028), (3472, 5773), (3514, 5704), (4016, 4991)]