255688720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{456587}}^1$

素因数の和:456607

約数の個数: 40

約数和(自身を含む): 679402944

約数和(自身を除く): 423714224

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 456587, 913174, 1826348, 2282935, 3196109, 3652696, 4565870, 6392218, 7305392, 9131740, 12784436, 15980545, 18263480, 25568872, 31961090, 36526960, 51137744, 63922180, 127844360, 255688720]

約数ペア:

[(1, 255688720), (2, 127844360), (4, 63922180), (5, 51137744), (7, 36526960), (8, 31961090), (10, 25568872), (14, 18263480), (16, 15980545), (20, 12784436), (28, 9131740), (35, 7305392), (40, 6392218), (56, 4565870), (70, 3652696), (80, 3196109), (112, 2282935), (140, 1826348), (280, 913174), (560, 456587)]