212880815

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1361}}^1$

素因数の和:1523

約数の個数: 32

約数和(自身を含む): 302037120

約数和(自身を除く): 89156305

約数列:

[1, 5, 7, 35, 41, 109, 205, 287, 545, 763, 1361, 1435, 3815, 4469, 6805, 9527, 22345, 31283, 47635, 55801, 148349, 156415, 279005, 390607, 741745, 1038443, 1953035, 5192215, 6082309, 30411545, 42576163, 212880815]

約数ペア:

[(1, 212880815), (5, 42576163), (7, 30411545), (35, 6082309), (41, 5192215), (109, 1953035), (205, 1038443), (287, 741745), (545, 390607), (763, 279005), (1361, 156415), (1435, 148349), (3815, 55801), (4469, 47635), (6805, 31283), (9527, 22345)]