320445880

素因数分解:

$2^3\times 5^1\times {\mathrm{2221}}^1\times {\mathrm{3607}}^1$

素因数の和:5839

約数の個数: 32

約数和(自身を含む): 721527840

約数和(自身を除く): 401081960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2221, 3607, 4442, 7214, 8884, 11105, 14428, 17768, 18035, 22210, 28856, 36070, 44420, 72140, 88840, 144280, 8011147, 16022294, 32044588, 40055735, 64089176, 80111470, 160222940, 320445880]

約数ペア:

[(1, 320445880), (2, 160222940), (4, 80111470), (5, 64089176), (8, 40055735), (10, 32044588), (20, 16022294), (40, 8011147), (2221, 144280), (3607, 88840), (4442, 72140), (7214, 44420), (8884, 36070), (11105, 28856), (14428, 22210), (17768, 18035)]