28667916

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{337}}^1$

素因数の和:503

約数の個数: 72

約数和(自身を含む): 77510160

約数和(自身を除く): 48842244

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 139, 153, 204, 278, 306, 337, 417, 556, 612, 674, 834, 1011, 1251, 1348, 1668, 2022, 2363, 2502, 3033, 4044, 4726, 5004, 5729, 6066, 7089, 9452, 11458, 12132, 14178, 17187, 21267, 22916, 28356, 34374, 42534, 46843, 51561, 68748, 85068, 93686, 103122, 140529, 187372, 206244, 281058, 421587, 562116, 796331, 843174, 1592662, 1686348, 2388993, 3185324, 4777986, 7166979, 9555972, 14333958, 28667916]

約数ペア:

[(1, 28667916), (2, 14333958), (3, 9555972), (4, 7166979), (6, 4777986), (9, 3185324), (12, 2388993), (17, 1686348), (18, 1592662), (34, 843174), (36, 796331), (51, 562116), (68, 421587), (102, 281058), (139, 206244), (153, 187372), (204, 140529), (278, 103122), (306, 93686), (337, 85068), (417, 68748), (556, 51561), (612, 46843), (674, 42534), (834, 34374), (1011, 28356), (1251, 22916), (1348, 21267), (1668, 17187), (2022, 14178), (2363, 12132), (2502, 11458), (3033, 9452), (4044, 7089), (4726, 6066), (5004, 5729)]