979720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{3499}}^1$

素因数の和:3517

約数の個数: 32

約数和(自身を含む): 2520000

約数和(自身を除く): 1540280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 3499, 6998, 13996, 17495, 24493, 27992, 34990, 48986, 69980, 97972, 122465, 139960, 195944, 244930, 489860, 979720]

約数ペア:

[(1, 979720), (2, 489860), (4, 244930), (5, 195944), (7, 139960), (8, 122465), (10, 97972), (14, 69980), (20, 48986), (28, 34990), (35, 27992), (40, 24493), (56, 17495), (70, 13996), (140, 6998), (280, 3499)]