831880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{2971}}^1$

素因数の和:2989

約数の個数: 32

約数和(自身を含む): 2139840

約数和(自身を除く): 1307960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 2971, 5942, 11884, 14855, 20797, 23768, 29710, 41594, 59420, 83188, 103985, 118840, 166376, 207970, 415940, 831880]

約数ペア:

[(1, 831880), (2, 415940), (4, 207970), (5, 166376), (7, 118840), (8, 103985), (10, 83188), (14, 59420), (20, 41594), (28, 29710), (35, 23768), (40, 20797), (56, 14855), (70, 11884), (140, 5942), (280, 2971)]