205850740

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{16057}}^1$

素因数の和:16707

約数の個数: 24

約数和(自身を含む): 432987912

約数和(自身を除く): 227137172

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 6410, 12820, 16057, 32114, 64228, 80285, 160570, 321140, 10292537, 20585074, 41170148, 51462685, 102925370, 205850740]

約数ペア:

[(1, 205850740), (2, 102925370), (4, 51462685), (5, 41170148), (10, 20585074), (20, 10292537), (641, 321140), (1282, 160570), (2564, 80285), (3205, 64228), (6410, 32114), (12820, 16057)]