256549328

素因数分解:

$2^4\times 7^1\times {\mathrm{2290619}}^1$

素因数の和:2290634

約数の個数: 20

約数和(自身を含む): 568073760

約数和(自身を除く): 311524432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 2290619, 4581238, 9162476, 16034333, 18324952, 32068666, 36649904, 64137332, 128274664, 256549328]

約数ペア:

[(1, 256549328), (2, 128274664), (4, 64137332), (7, 36649904), (8, 32068666), (14, 18324952), (16, 16034333), (28, 9162476), (56, 4581238), (112, 2290619)]