257591475

素因数分解:

$3^3\times 5^2\times {\mathrm{359}}^1\times {\mathrm{1063}}^1$

素因数の和:1441

約数の個数: 48

約数和(自身を含む): 474969600

約数和(自身を除く): 217378125

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 359, 675, 1063, 1077, 1795, 3189, 3231, 5315, 5385, 8975, 9567, 9693, 15945, 16155, 26575, 26925, 28701, 47835, 48465, 79725, 80775, 143505, 239175, 242325, 381617, 717525, 1144851, 1908085, 3434553, 5724255, 9540425, 10303659, 17172765, 28621275, 51518295, 85863825, 257591475]

約数ペア:

[(1, 257591475), (3, 85863825), (5, 51518295), (9, 28621275), (15, 17172765), (25, 10303659), (27, 9540425), (45, 5724255), (75, 3434553), (135, 1908085), (225, 1144851), (359, 717525), (675, 381617), (1063, 242325), (1077, 239175), (1795, 143505), (3189, 80775), (3231, 79725), (5315, 48465), (5385, 47835), (8975, 28701), (9567, 26925), (9693, 26575), (15945, 16155)]