5131423408

素因数分解:

$2^4\times {\mathrm{997}}^1\times {\mathrm{321679}}^1$

素因数の和:322684

約数の個数: 20

約数和(自身を含む): 9952135840

約数和(自身を除く): 4820712432

約数列:

[1, 2, 4, 8, 16, 997, 1994, 3988, 7976, 15952, 321679, 643358, 1286716, 2573432, 5146864, 320713963, 641427926, 1282855852, 2565711704, 5131423408]

約数ペア:

[(1, 5131423408), (2, 2565711704), (4, 1282855852), (8, 641427926), (16, 320713963), (997, 5146864), (1994, 2573432), (3988, 1286716), (7976, 643358), (15952, 321679)]