256411071

素因数分解:

$3^2\times 7^2\times {\mathrm{229}}^1\times {\mathrm{2539}}^1$

素因数の和:2788

約数の個数: 36

約数和(自身を含む): 432892200

約数和(自身を除く): 176481129

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 229, 441, 687, 1603, 2061, 2539, 4809, 7617, 11221, 14427, 17773, 22851, 33663, 53319, 100989, 124411, 159957, 373233, 581431, 1119699, 1744293, 4070017, 5232879, 12210051, 28490119, 36630153, 85470357, 256411071]

約数ペア:

[(1, 256411071), (3, 85470357), (7, 36630153), (9, 28490119), (21, 12210051), (49, 5232879), (63, 4070017), (147, 1744293), (229, 1119699), (441, 581431), (687, 373233), (1603, 159957), (2061, 124411), (2539, 100989), (4809, 53319), (7617, 33663), (11221, 22851), (14427, 17773)]