1289743845

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{20477}}^1$

素因数の和:20534

約数の個数: 64

約数和(自身を含む): 2477018880

約数和(自身を除く): 1187275035

約数列:

[1, 3, 5, 13, 15, 17, 19, 39, 51, 57, 65, 85, 95, 195, 221, 247, 255, 285, 323, 663, 741, 969, 1105, 1235, 1615, 3315, 3705, 4199, 4845, 12597, 20477, 20995, 61431, 62985, 102385, 266201, 307155, 348109, 389063, 798603, 1044327, 1167189, 1331005, 1740545, 1945315, 3993015, 4525417, 5057819, 5221635, 5835945, 6614071, 13576251, 15173457, 19842213, 22627085, 25289095, 33070355, 67881255, 75867285, 85982923, 99211065, 257948769, 429914615, 1289743845]

約数ペア:

[(1, 1289743845), (3, 429914615), (5, 257948769), (13, 99211065), (15, 85982923), (17, 75867285), (19, 67881255), (39, 33070355), (51, 25289095), (57, 22627085), (65, 19842213), (85, 15173457), (95, 13576251), (195, 6614071), (221, 5835945), (247, 5221635), (255, 5057819), (285, 4525417), (323, 3993015), (663, 1945315), (741, 1740545), (969, 1331005), (1105, 1167189), (1235, 1044327), (1615, 798603), (3315, 389063), (3705, 348109), (4199, 307155), (4845, 266201), (12597, 102385), (20477, 62985), (20995, 61431)]