81619965

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 170726400

約数和(自身を除く): 89106435

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 47, 63, 105, 111, 141, 149, 185, 235, 259, 315, 329, 333, 423, 447, 555, 705, 745, 777, 987, 1043, 1295, 1341, 1645, 1665, 1739, 2115, 2235, 2331, 2961, 3129, 3885, 4935, 5215, 5217, 5513, 6705, 7003, 8695, 9387, 11655, 12173, 14805, 15645, 15651, 16539, 21009, 26085, 27565, 35015, 36519, 38591, 46935, 49021, 49617, 60865, 63027, 78255, 82695, 105045, 109557, 115773, 147063, 182595, 192955, 245105, 248085, 259111, 315135, 347319, 441189, 547785, 578865, 735315, 777333, 1295555, 1736595, 1813777, 2205945, 2331999, 3886665, 5441331, 9068885, 11659995, 16323993, 27206655, 81619965]

約数ペア:

[(1, 81619965), (3, 27206655), (5, 16323993), (7, 11659995), (9, 9068885), (15, 5441331), (21, 3886665), (35, 2331999), (37, 2205945), (45, 1813777), (47, 1736595), (63, 1295555), (105, 777333), (111, 735315), (141, 578865), (149, 547785), (185, 441189), (235, 347319), (259, 315135), (315, 259111), (329, 248085), (333, 245105), (423, 192955), (447, 182595), (555, 147063), (705, 115773), (745, 109557), (777, 105045), (987, 82695), (1043, 78255), (1295, 63027), (1341, 60865), (1645, 49617), (1665, 49021), (1739, 46935), (2115, 38591), (2235, 36519), (2331, 35015), (2961, 27565), (3129, 26085), (3885, 21009), (4935, 16539), (5215, 15651), (5217, 15645), (5513, 14805), (6705, 12173), (7003, 11655), (8695, 9387)]