25812855

素因数分解:

$3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{137}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 46500480

約数和(自身を除く): 20687625

約数列:

[1, 3, 5, 9, 15, 45, 53, 79, 137, 159, 237, 265, 395, 411, 477, 685, 711, 795, 1185, 1233, 2055, 2385, 3555, 4187, 6165, 7261, 10823, 12561, 20935, 21783, 32469, 36305, 37683, 54115, 62805, 65349, 97407, 108915, 162345, 188415, 326745, 487035, 573619, 1720857, 2868095, 5162571, 8604285, 25812855]

約数ペア:

[(1, 25812855), (3, 8604285), (5, 5162571), (9, 2868095), (15, 1720857), (45, 573619), (53, 487035), (79, 326745), (137, 188415), (159, 162345), (237, 108915), (265, 97407), (395, 65349), (411, 62805), (477, 54115), (685, 37683), (711, 36305), (795, 32469), (1185, 21783), (1233, 20935), (2055, 12561), (2385, 10823), (3555, 7261), (4187, 6165)]