125720840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{449003}}^1$

素因数の和:449021

約数の個数: 32

約数和(自身を含む): 323282880

約数和(自身を除く): 197562040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 449003, 898006, 1796012, 2245015, 3143021, 3592024, 4490030, 6286042, 8980060, 12572084, 15715105, 17960120, 25144168, 31430210, 62860420, 125720840]

約数ペア:

[(1, 125720840), (2, 62860420), (4, 31430210), (5, 25144168), (7, 17960120), (8, 15715105), (10, 12572084), (14, 8980060), (20, 6286042), (28, 4490030), (35, 3592024), (40, 3143021), (56, 2245015), (70, 1796012), (140, 898006), (280, 449003)]