7980456879

素因数分解:

$3^4\times {\mathrm{59}}^1\times {\mathrm{1123}}^1\times {\mathrm{1487}}^1$

素因数の和:2681

約数の個数: 40

約数和(自身を含む): 12142437120

約数和(自身を除く): 4161980241

約数列:

[1, 3, 9, 27, 59, 81, 177, 531, 1123, 1487, 1593, 3369, 4461, 4779, 10107, 13383, 30321, 40149, 66257, 87733, 90963, 120447, 198771, 263199, 596313, 789597, 1669901, 1788939, 2368791, 5009703, 5366817, 7106373, 15029109, 45087327, 98524159, 135261981, 295572477, 886717431, 2660152293, 7980456879]

約数ペア:

[(1, 7980456879), (3, 2660152293), (9, 886717431), (27, 295572477), (59, 135261981), (81, 98524159), (177, 45087327), (531, 15029109), (1123, 7106373), (1487, 5366817), (1593, 5009703), (3369, 2368791), (4461, 1788939), (4779, 1669901), (10107, 789597), (13383, 596313), (30321, 263199), (40149, 198771), (66257, 120447), (87733, 90963)]