179392820

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{28657}}^1$

素因数の和:28979

約数の個数: 24

約数和(自身を含む): 377941704

約数和(自身を除く): 198548884

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 28657, 57314, 114628, 143285, 286570, 573140, 8969641, 17939282, 35878564, 44848205, 89696410, 179392820]

約数ペア:

[(1, 179392820), (2, 89696410), (4, 44848205), (5, 35878564), (10, 17939282), (20, 8969641), (313, 573140), (626, 286570), (1252, 143285), (1565, 114628), (3130, 57314), (6260, 28657)]