169620820

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{19319}}^1$

素因数の和:19767

約数の個数: 24

約数和(自身を含む): 357033600

約数和(自身を除く): 187412780

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390, 8780, 19319, 38638, 77276, 96595, 193190, 386380, 8481041, 16962082, 33924164, 42405205, 84810410, 169620820]

約数ペア:

[(1, 169620820), (2, 84810410), (4, 42405205), (5, 33924164), (10, 16962082), (20, 8481041), (439, 386380), (878, 193190), (1756, 96595), (2195, 77276), (4390, 38638), (8780, 19319)]