131256405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:355

約数の個数: 96

約数和(自身を含む): 278913024

約数和(自身を除く): 147656619

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 127, 153, 193, 255, 315, 357, 381, 579, 595, 635, 765, 889, 965, 1071, 1143, 1351, 1737, 1785, 1905, 2159, 2667, 2895, 3281, 4053, 4445, 5355, 5715, 6477, 6755, 8001, 8685, 9843, 10795, 12159, 13335, 15113, 16405, 19431, 20265, 22967, 24511, 29529, 32385, 40005, 45339, 49215, 60795, 68901, 73533, 75565, 97155, 114835, 122555, 136017, 147645, 171577, 206703, 220599, 226695, 344505, 367665, 416687, 514731, 680085, 857885, 1033515, 1102995, 1250061, 1544193, 2083435, 2573655, 2916809, 3750183, 6250305, 7720965, 8750427, 14584045, 18750915, 26251281, 43752135, 131256405]

約数ペア:

[(1, 131256405), (3, 43752135), (5, 26251281), (7, 18750915), (9, 14584045), (15, 8750427), (17, 7720965), (21, 6250305), (35, 3750183), (45, 2916809), (51, 2573655), (63, 2083435), (85, 1544193), (105, 1250061), (119, 1102995), (127, 1033515), (153, 857885), (193, 680085), (255, 514731), (315, 416687), (357, 367665), (381, 344505), (579, 226695), (595, 220599), (635, 206703), (765, 171577), (889, 147645), (965, 136017), (1071, 122555), (1143, 114835), (1351, 97155), (1737, 75565), (1785, 73533), (1905, 68901), (2159, 60795), (2667, 49215), (2895, 45339), (3281, 40005), (4053, 32385), (4445, 29529), (5355, 24511), (5715, 22967), (6477, 20265), (6755, 19431), (8001, 16405), (8685, 15113), (9843, 13335), (10795, 12159)]