218624980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1561607}}^1$

素因数の和:1561623

約数の個数: 24

約数和(自身を含む): 524700288

約数和(自身を除く): 306075308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1561607, 3123214, 6246428, 7808035, 10931249, 15616070, 21862498, 31232140, 43724996, 54656245, 109312490, 218624980]

約数ペア:

[(1, 218624980), (2, 109312490), (4, 54656245), (5, 43724996), (7, 31232140), (10, 21862498), (14, 15616070), (20, 10931249), (28, 7808035), (35, 6246428), (70, 3123214), (140, 1561607)]