388643080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1388011}}^1$

素因数の和:1388029

約数の個数: 32

約数和(自身を含む): 999368640

約数和(自身を除く): 610725560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1388011, 2776022, 5552044, 6940055, 9716077, 11104088, 13880110, 19432154, 27760220, 38864308, 48580385, 55520440, 77728616, 97160770, 194321540, 388643080]

約数ペア:

[(1, 388643080), (2, 194321540), (4, 97160770), (5, 77728616), (7, 55520440), (8, 48580385), (10, 38864308), (14, 27760220), (20, 19432154), (28, 13880110), (35, 11104088), (40, 9716077), (56, 6940055), (70, 5552044), (140, 2776022), (280, 1388011)]