203421405

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{1543}}^1$

素因数の和:1626

約数の個数: 64

約数和(自身を含む): 384196608

約数和(自身を除く): 180775203

約数列:

[1, 3, 5, 11, 15, 17, 33, 47, 51, 55, 85, 141, 165, 187, 235, 255, 517, 561, 705, 799, 935, 1543, 1551, 2397, 2585, 2805, 3995, 4629, 7715, 7755, 8789, 11985, 16973, 23145, 26231, 26367, 43945, 50919, 72521, 78693, 84865, 131155, 131835, 217563, 254595, 288541, 362605, 393465, 797731, 865623, 1087815, 1232857, 1442705, 2393193, 3698571, 3988655, 4328115, 6164285, 11965965, 13561427, 18492855, 40684281, 67807135, 203421405]

約数ペア:

[(1, 203421405), (3, 67807135), (5, 40684281), (11, 18492855), (15, 13561427), (17, 11965965), (33, 6164285), (47, 4328115), (51, 3988655), (55, 3698571), (85, 2393193), (141, 1442705), (165, 1232857), (187, 1087815), (235, 865623), (255, 797731), (517, 393465), (561, 362605), (705, 288541), (799, 254595), (935, 217563), (1543, 131835), (1551, 131155), (2397, 84865), (2585, 78693), (2805, 72521), (3995, 50919), (4629, 43945), (7715, 26367), (7755, 26231), (8789, 23145), (11985, 16973)]