1640579440

素因数分解:

$2^4\times 5^1\times {\mathrm{2851}}^1\times {\mathrm{7193}}^1$

素因数の和:10057

約数の個数: 40

約数和(自身を含む): 3816215568

約数和(自身を除く): 2175636128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2851, 5702, 7193, 11404, 14255, 14386, 22808, 28510, 28772, 35965, 45616, 57020, 57544, 71930, 114040, 115088, 143860, 228080, 287720, 575440, 20507243, 41014486, 82028972, 102536215, 164057944, 205072430, 328115888, 410144860, 820289720, 1640579440]

約数ペア:

[(1, 1640579440), (2, 820289720), (4, 410144860), (5, 328115888), (8, 205072430), (10, 164057944), (16, 102536215), (20, 82028972), (40, 41014486), (80, 20507243), (2851, 575440), (5702, 287720), (7193, 228080), (11404, 143860), (14255, 115088), (14386, 114040), (22808, 71930), (28510, 57544), (28772, 57020), (35965, 45616)]