256720815

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{9337}}^1$

素因数の和:9408

約数の個数: 48

約数和(自身を含む): 489460608

約数和(自身を除く): 232739793

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 47, 65, 117, 141, 195, 235, 423, 585, 611, 705, 1833, 2115, 3055, 5499, 9165, 9337, 27495, 28011, 46685, 84033, 121381, 140055, 364143, 420165, 438839, 606905, 1092429, 1316517, 1820715, 2194195, 3949551, 5462145, 5704907, 6582585, 17114721, 19747755, 28524535, 51344163, 85573605, 256720815]

約数ペア:

[(1, 256720815), (3, 85573605), (5, 51344163), (9, 28524535), (13, 19747755), (15, 17114721), (39, 6582585), (45, 5704907), (47, 5462145), (65, 3949551), (117, 2194195), (141, 1820715), (195, 1316517), (235, 1092429), (423, 606905), (585, 438839), (611, 420165), (705, 364143), (1833, 140055), (2115, 121381), (3055, 84033), (5499, 46685), (9165, 28011), (9337, 27495)]