209611960

素因数分解:

$2^3\times 5^1\times {\mathrm{5240299}}^1$

素因数の和:5240310

約数の個数: 16

約数和(自身を含む): 471627000

約数和(自身を除く): 262015040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5240299, 10480598, 20961196, 26201495, 41922392, 52402990, 104805980, 209611960]

約数ペア:

[(1, 209611960), (2, 104805980), (4, 52402990), (5, 41922392), (8, 26201495), (10, 20961196), (20, 10480598), (40, 5240299)]