255729663

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{661}}^1$

素因数の和:789

約数の個数: 64

約数和(自身を含む): 457574400

約数和(自身を除く): 201844737

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 89, 161, 189, 207, 267, 483, 621, 623, 661, 801, 1449, 1869, 1983, 2047, 2403, 4347, 4627, 5607, 5949, 6141, 13881, 14329, 15203, 16821, 17847, 18423, 41643, 42987, 45609, 55269, 58829, 106421, 124929, 128961, 136827, 176487, 319263, 386883, 410481, 411803, 529461, 957789, 1235409, 1353067, 1588383, 2873367, 3706227, 4059201, 9471469, 11118681, 12177603, 28414407, 36532809, 85243221, 255729663]

約数ペア:

[(1, 255729663), (3, 85243221), (7, 36532809), (9, 28414407), (21, 12177603), (23, 11118681), (27, 9471469), (63, 4059201), (69, 3706227), (89, 2873367), (161, 1588383), (189, 1353067), (207, 1235409), (267, 957789), (483, 529461), (621, 411803), (623, 410481), (661, 386883), (801, 319263), (1449, 176487), (1869, 136827), (1983, 128961), (2047, 124929), (2403, 106421), (4347, 58829), (4627, 55269), (5607, 45609), (5949, 42987), (6141, 41643), (13881, 18423), (14329, 17847), (15203, 16821)]