487305

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1$

素因数の和:55

約数の個数: 72

約数和(自身を含む): 1120392

約数和(自身を除く): 633087

約数列:

[1, 3, 5, 7, 9, 13, 15, 17, 21, 35, 39, 45, 49, 51, 63, 65, 85, 91, 105, 117, 119, 147, 153, 195, 221, 245, 255, 273, 315, 357, 441, 455, 585, 595, 637, 663, 735, 765, 819, 833, 1071, 1105, 1365, 1547, 1785, 1911, 1989, 2205, 2499, 3185, 3315, 4095, 4165, 4641, 5355, 5733, 7497, 7735, 9555, 9945, 10829, 12495, 13923, 23205, 28665, 32487, 37485, 54145, 69615, 97461, 162435, 487305]

約数ペア:

[(1, 487305), (3, 162435), (5, 97461), (7, 69615), (9, 54145), (13, 37485), (15, 32487), (17, 28665), (21, 23205), (35, 13923), (39, 12495), (45, 10829), (49, 9945), (51, 9555), (63, 7735), (65, 7497), (85, 5733), (91, 5355), (105, 4641), (117, 4165), (119, 4095), (147, 3315), (153, 3185), (195, 2499), (221, 2205), (245, 1989), (255, 1911), (273, 1785), (315, 1547), (357, 1365), (441, 1105), (455, 1071), (585, 833), (595, 819), (637, 765), (663, 735)]