20700940928

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{5216971}}^1$

素因数の和:5217016

約数の個数: 32

約数和(自身を含む): 42570491520

約数和(自身を除く): 21869550592

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 5216971, 10433942, 20867884, 41735768, 83471536, 161726101, 166943072, 323452202, 333886144, 646904404, 667772288, 1293808808, 2587617616, 5175235232, 10350470464, 20700940928]

約数ペア:

[(1, 20700940928), (2, 10350470464), (4, 5175235232), (8, 2587617616), (16, 1293808808), (31, 667772288), (32, 646904404), (62, 333886144), (64, 323452202), (124, 166943072), (128, 161726101), (248, 83471536), (496, 41735768), (992, 20867884), (1984, 10433942), (3968, 5216971)]