423760

素因数分解:

$2^4\times 5^1\times {\mathrm{5297}}^1$

素因数の和:5310

約数の個数: 20

約数和(自身を含む): 985428

約数和(自身を除く): 561668

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5297, 10594, 21188, 26485, 42376, 52970, 84752, 105940, 211880, 423760]

約数ペア:

[(1, 423760), (2, 211880), (4, 105940), (5, 84752), (8, 52970), (10, 42376), (16, 26485), (20, 21188), (40, 10594), (80, 5297)]