255662841

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{239}}^1\times {\mathrm{383}}^1$

素因数の和:658

約数の個数: 48

約数和(自身を含む): 420249600

約数和(自身を除く): 164586759

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 239, 383, 399, 717, 931, 1149, 1673, 2681, 2793, 4541, 5019, 7277, 8043, 11711, 13623, 18767, 21831, 31787, 35133, 50939, 56301, 91537, 95361, 152817, 222509, 274611, 356573, 640759, 667527, 1069719, 1739203, 1922277, 4485313, 5217609, 12174421, 13455939, 36523263, 85220947, 255662841]

約数ペア:

[(1, 255662841), (3, 85220947), (7, 36523263), (19, 13455939), (21, 12174421), (49, 5217609), (57, 4485313), (133, 1922277), (147, 1739203), (239, 1069719), (383, 667527), (399, 640759), (717, 356573), (931, 274611), (1149, 222509), (1673, 152817), (2681, 95361), (2793, 91537), (4541, 56301), (5019, 50939), (7277, 35133), (8043, 31787), (11711, 21831), (13623, 18767)]