7979720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{28499}}^1$

素因数の和:28517

約数の個数: 32

約数和(自身を含む): 20520000

約数和(自身を除く): 12540280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 28499, 56998, 113996, 142495, 199493, 227992, 284990, 398986, 569980, 797972, 997465, 1139960, 1595944, 1994930, 3989860, 7979720]

約数ペア:

[(1, 7979720), (2, 3989860), (4, 1994930), (5, 1595944), (7, 1139960), (8, 997465), (10, 797972), (14, 569980), (20, 398986), (28, 284990), (35, 227992), (40, 199493), (56, 142495), (70, 113996), (140, 56998), (280, 28499)]