1290978

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{613}}^1$

素因数の和:640

約数の個数: 40

約数和(自身を含む): 3120348

約数和(自身を除く): 1829370

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 351, 613, 702, 1053, 1226, 1839, 2106, 3678, 5517, 7969, 11034, 15938, 16551, 23907, 33102, 47814, 49653, 71721, 99306, 143442, 215163, 430326, 645489, 1290978]

約数ペア:

[(1, 1290978), (2, 645489), (3, 430326), (6, 215163), (9, 143442), (13, 99306), (18, 71721), (26, 49653), (27, 47814), (39, 33102), (54, 23907), (78, 16551), (81, 15938), (117, 11034), (162, 7969), (234, 5517), (351, 3678), (613, 2106), (702, 1839), (1053, 1226)]