255640671

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{907}}^1$

素因数の和:1013

約数の個数: 64

約数和(自身を含む): 451530240

約数和(自身を除く): 195889569

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 73, 99, 117, 143, 219, 297, 351, 429, 657, 803, 907, 949, 1287, 1971, 2409, 2721, 2847, 3861, 7227, 8163, 8541, 9977, 10439, 11791, 21681, 24489, 25623, 29931, 31317, 35373, 66211, 89793, 93951, 106119, 129701, 198633, 269379, 281853, 318357, 389103, 595899, 728321, 860743, 1167309, 1787697, 2184963, 2582229, 3501927, 6554889, 7746687, 9468173, 19664667, 23240061, 28404519, 85213557, 255640671]

約数ペア:

[(1, 255640671), (3, 85213557), (9, 28404519), (11, 23240061), (13, 19664667), (27, 9468173), (33, 7746687), (39, 6554889), (73, 3501927), (99, 2582229), (117, 2184963), (143, 1787697), (219, 1167309), (297, 860743), (351, 728321), (429, 595899), (657, 389103), (803, 318357), (907, 281853), (949, 269379), (1287, 198633), (1971, 129701), (2409, 106119), (2721, 93951), (2847, 89793), (3861, 66211), (7227, 35373), (8163, 31317), (8541, 29931), (9977, 25623), (10439, 24489), (11791, 21681)]