68405415

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{499}}^1$

素因数の和:576

約数の個数: 64

約数和(自身を含む): 127680000

約数和(自身を除く): 59274585

約数列:

[1, 3, 5, 13, 15, 19, 37, 39, 57, 65, 95, 111, 185, 195, 247, 285, 481, 499, 555, 703, 741, 1235, 1443, 1497, 2109, 2405, 2495, 3515, 3705, 6487, 7215, 7485, 9139, 9481, 10545, 18463, 19461, 27417, 28443, 32435, 45695, 47405, 55389, 92315, 97305, 123253, 137085, 142215, 240019, 276945, 350797, 369759, 616265, 720057, 1052391, 1200095, 1753985, 1848795, 3600285, 4560361, 5261955, 13681083, 22801805, 68405415]

約数ペア:

[(1, 68405415), (3, 22801805), (5, 13681083), (13, 5261955), (15, 4560361), (19, 3600285), (37, 1848795), (39, 1753985), (57, 1200095), (65, 1052391), (95, 720057), (111, 616265), (185, 369759), (195, 350797), (247, 276945), (285, 240019), (481, 142215), (499, 137085), (555, 123253), (703, 97305), (741, 92315), (1235, 55389), (1443, 47405), (1497, 45695), (2109, 32435), (2405, 28443), (2495, 27417), (3515, 19461), (3705, 18463), (6487, 10545), (7215, 9481), (7485, 9139)]