209548745

素因数分解:

$5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 313020288

約数和(自身を除く): 103471543

約数列:

[1, 5, 7, 23, 35, 41, 49, 115, 161, 205, 245, 287, 805, 907, 943, 1127, 1435, 2009, 4535, 4715, 5635, 6349, 6601, 10045, 20861, 31745, 33005, 37187, 44443, 46207, 104305, 146027, 185935, 222215, 231035, 260309, 730135, 855301, 1022189, 1301545, 1822163, 4276505, 5110945, 5987107, 9110815, 29935535, 41909749, 209548745]

約数ペア:

[(1, 209548745), (5, 41909749), (7, 29935535), (23, 9110815), (35, 5987107), (41, 5110945), (49, 4276505), (115, 1822163), (161, 1301545), (205, 1022189), (245, 855301), (287, 730135), (805, 260309), (907, 231035), (943, 222215), (1127, 185935), (1435, 146027), (2009, 104305), (4535, 46207), (4715, 44443), (5635, 37187), (6349, 33005), (6601, 31745), (10045, 20861)]