20112856

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{281}}^1\times {\mathrm{389}}^1$

素因数の和:699

約数の個数: 32

約数和(自身を含む): 39592800

約数和(自身を除く): 19479944

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 281, 389, 562, 778, 1124, 1556, 2248, 3112, 6463, 8947, 12926, 17894, 25852, 35788, 51704, 71576, 109309, 218618, 437236, 874472, 2514107, 5028214, 10056428, 20112856]

約数ペア:

[(1, 20112856), (2, 10056428), (4, 5028214), (8, 2514107), (23, 874472), (46, 437236), (92, 218618), (184, 109309), (281, 71576), (389, 51704), (562, 35788), (778, 25852), (1124, 17894), (1556, 12926), (2248, 8947), (3112, 6463)]