621880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2221}}^1$

素因数の和:2239

約数の個数: 32

約数和(自身を含む): 1599840

約数和(自身を除く): 977960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2221, 4442, 8884, 11105, 15547, 17768, 22210, 31094, 44420, 62188, 77735, 88840, 124376, 155470, 310940, 621880]

約数ペア:

[(1, 621880), (2, 310940), (4, 155470), (5, 124376), (7, 88840), (8, 77735), (10, 62188), (14, 44420), (20, 31094), (28, 22210), (35, 17768), (40, 15547), (56, 11105), (70, 8884), (140, 4442), (280, 2221)]