21983080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{78511}}^1$

素因数の和:78529

約数の個数: 32

約数和(自身を含む): 56528640

約数和(自身を除く): 34545560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 78511, 157022, 314044, 392555, 549577, 628088, 785110, 1099154, 1570220, 2198308, 2747885, 3140440, 4396616, 5495770, 10991540, 21983080]

約数ペア:

[(1, 21983080), (2, 10991540), (4, 5495770), (5, 4396616), (7, 3140440), (8, 2747885), (10, 2198308), (14, 1570220), (20, 1099154), (28, 785110), (35, 628088), (40, 549577), (56, 392555), (70, 314044), (140, 157022), (280, 78511)]