28339780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{5471}}^1$

素因数の和:5524

約数の個数: 48

約数和(自身を含む): 69866496

約数和(自身を除く): 41526716

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 5471, 10942, 21884, 27355, 38297, 54710, 76594, 109420, 153188, 191485, 202427, 382970, 404854, 765940, 809708, 1012135, 1416989, 2024270, 2833978, 4048540, 5667956, 7084945, 14169890, 28339780]

約数ペア:

[(1, 28339780), (2, 14169890), (4, 7084945), (5, 5667956), (7, 4048540), (10, 2833978), (14, 2024270), (20, 1416989), (28, 1012135), (35, 809708), (37, 765940), (70, 404854), (74, 382970), (140, 202427), (148, 191485), (185, 153188), (259, 109420), (370, 76594), (518, 54710), (740, 38297), (1036, 27355), (1295, 21884), (2590, 10942), (5180, 5471)]