217440580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1553147}}^1$

素因数の和:1553163

約数の個数: 24

約数和(自身を含む): 521857728

約数和(自身を除く): 304417148

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1553147, 3106294, 6212588, 7765735, 10872029, 15531470, 21744058, 31062940, 43488116, 54360145, 108720290, 217440580]

約数ペア:

[(1, 217440580), (2, 108720290), (4, 54360145), (5, 43488116), (7, 31062940), (10, 21744058), (14, 15531470), (20, 10872029), (28, 7765735), (35, 6212588), (70, 3106294), (140, 1553147)]