128133124

素因数分解:

$2^2\times 7^1\times {\mathrm{223}}^1\times {\mathrm{20521}}^1$

素因数の和:20755

約数の個数: 24

約数和(自身を含む): 257427968

約数和(自身を除く): 129294844

約数列:

[1, 2, 4, 7, 14, 28, 223, 446, 892, 1561, 3122, 6244, 20521, 41042, 82084, 143647, 287294, 574588, 4576183, 9152366, 18304732, 32033281, 64066562, 128133124]

約数ペア:

[(1, 128133124), (2, 64066562), (4, 32033281), (7, 18304732), (14, 9152366), (28, 4576183), (223, 574588), (446, 287294), (892, 143647), (1561, 82084), (3122, 41042), (6244, 20521)]