398665215

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{40087}}^1$

素因数の和:40128

約数の個数: 48

約数和(自身を含む): 787969728

約数和(自身を除く): 389304513

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1989, 3315, 9945, 40087, 120261, 200435, 360783, 521131, 601305, 681479, 1563393, 1803915, 2044437, 2605655, 3407395, 4690179, 6133311, 7816965, 8859227, 10222185, 23450895, 26577681, 30666555, 44296135, 79733043, 132888405, 398665215]

約数ペア:

[(1, 398665215), (3, 132888405), (5, 79733043), (9, 44296135), (13, 30666555), (15, 26577681), (17, 23450895), (39, 10222185), (45, 8859227), (51, 7816965), (65, 6133311), (85, 4690179), (117, 3407395), (153, 2605655), (195, 2044437), (221, 1803915), (255, 1563393), (585, 681479), (663, 601305), (765, 521131), (1105, 360783), (1989, 200435), (3315, 120261), (9945, 40087)]