81205425

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1097}}^1$

素因数の和:1167

約数の個数: 72

約数和(自身を含む): 169917696

約数和(自身を除く): 88712271

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 47, 63, 75, 105, 141, 175, 225, 235, 315, 329, 423, 525, 705, 987, 1097, 1175, 1575, 1645, 2115, 2961, 3291, 3525, 4935, 5485, 7679, 8225, 9873, 10575, 14805, 16455, 23037, 24675, 27425, 38395, 49365, 51559, 69111, 74025, 82275, 115185, 154677, 191975, 246825, 257795, 345555, 360913, 464031, 575925, 773385, 1082739, 1288975, 1727775, 1804565, 2320155, 3248217, 3866925, 5413695, 9022825, 11600775, 16241085, 27068475, 81205425]

約数ペア:

[(1, 81205425), (3, 27068475), (5, 16241085), (7, 11600775), (9, 9022825), (15, 5413695), (21, 3866925), (25, 3248217), (35, 2320155), (45, 1804565), (47, 1727775), (63, 1288975), (75, 1082739), (105, 773385), (141, 575925), (175, 464031), (225, 360913), (235, 345555), (315, 257795), (329, 246825), (423, 191975), (525, 154677), (705, 115185), (987, 82275), (1097, 74025), (1175, 69111), (1575, 51559), (1645, 49365), (2115, 38395), (2961, 27425), (3291, 24675), (3525, 23037), (4935, 16455), (5485, 14805), (7679, 10575), (8225, 9873)]