51338320

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{227}}^1\times {\mathrm{257}}^1$

素因数の和:508

約数の個数: 80

約数和(自身を含む): 131295168

約数和(自身を除く): 79956848

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 227, 257, 440, 454, 514, 880, 908, 1028, 1135, 1285, 1816, 2056, 2270, 2497, 2570, 2827, 3632, 4112, 4540, 4994, 5140, 5654, 9080, 9988, 10280, 11308, 12485, 14135, 18160, 19976, 20560, 22616, 24970, 28270, 39952, 45232, 49940, 56540, 58339, 99880, 113080, 116678, 199760, 226160, 233356, 291695, 466712, 583390, 641729, 933424, 1166780, 1283458, 2333560, 2566916, 3208645, 4667120, 5133832, 6417290, 10267664, 12834580, 25669160, 51338320]

約数ペア:

[(1, 51338320), (2, 25669160), (4, 12834580), (5, 10267664), (8, 6417290), (10, 5133832), (11, 4667120), (16, 3208645), (20, 2566916), (22, 2333560), (40, 1283458), (44, 1166780), (55, 933424), (80, 641729), (88, 583390), (110, 466712), (176, 291695), (220, 233356), (227, 226160), (257, 199760), (440, 116678), (454, 113080), (514, 99880), (880, 58339), (908, 56540), (1028, 49940), (1135, 45232), (1285, 39952), (1816, 28270), (2056, 24970), (2270, 22616), (2497, 20560), (2570, 19976), (2827, 18160), (3632, 14135), (4112, 12485), (4540, 11308), (4994, 10280), (5140, 9988), (5654, 9080)]