780885

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:122

約数の個数: 48

約数和(自身を含む): 1612416

約数和(自身を除く): 831531

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 63, 67, 105, 111, 185, 201, 259, 315, 333, 335, 469, 555, 603, 777, 1005, 1295, 1407, 1665, 2331, 2345, 2479, 3015, 3885, 4221, 7035, 7437, 11655, 12395, 17353, 21105, 22311, 37185, 52059, 86765, 111555, 156177, 260295, 780885]

約数ペア:

[(1, 780885), (3, 260295), (5, 156177), (7, 111555), (9, 86765), (15, 52059), (21, 37185), (35, 22311), (37, 21105), (45, 17353), (63, 12395), (67, 11655), (105, 7437), (111, 7035), (185, 4221), (201, 3885), (259, 3015), (315, 2479), (333, 2345), (335, 2331), (469, 1665), (555, 1407), (603, 1295), (777, 1005)]